Harry Dunn's bereft parents today revealed they promised their son 'justice' in the minutes after he died as they made an appeal directly to Donald Trump 'as a father' to intervene during an emotional press conference in New York.
Charlotte Charles and Tim Dunn have flown to the US for a media blitz to put pressure on the White House to step in and force Anne Sacoolas to return to Britain to face justice saying: 'We can't start grieving until this is resolved'.
Harry's mother broke down as she told a press conference this afternoon: 'It's the right thing to to do. It's the humane thing to do.'
She said: 'It's a clear-cut case. She needs to get on the plane and get back to the UK, just do the right thing. It shouldn't have been this difficult, she surely didn't have to go.'
In a message for the US President, Mr Dunn added: 'I would say to him (Donald Trump) as a man, as a father, how could you let this happen, if you are a father and your child died surely you'd want that person to own up and take responsibility?'
And explaining the purpose of their visit to US, where the shocking case has received less coverage than in Britain, Mr Dunn said: 'We just wanted to come to speak to you guys to put our story out there, to let the American people know what is actually going on, to tell people about Harry and how we just want our justice for our son.'
Sacoolas, 42, fled to the US on a state-sponsored private jet in the wake of the fatality outside a US spy base in Northamptonshire, claiming diplomatic immunity using her husband Jonathan's job.
CCTV footage from the RAF base captured the moment Mr Dunn was killed in a 'big fireball' following the road crash.
The family said evidence of the video leading up to the crash made it 'a clear-cut case'.
When asked if the footage had been sourced from the RAF base, a Northamptonshire Police spokesman said: 'Yes, I believe so.'
Sacoolas, who had two of her own children in the car, spoke to police but was flown out of the UK from a US air base in Suffolk before she could be arrested and charged.
The spy's wife claims she was devastated by the crash and sent 'her deepest sympathy to Harry Dunn's family' in a statement released by her lawyer over the weekend.
Asked if the authorities should have done anything different over the handling of the case, Ms Charles said today: 'Not let her go home. Whoever made that decision we do not know, but we shouldn't have gone through this.
'We shouldn't be suffering like this. It should have been an open and shut case. The evidence is extremely clear what happened.
'We've been told that there is CCTV evidence showing her leaving RAF Croughton on the wrong side of the road and that CCTV follows her all the way down the road on the wrong side of the road and you see Harry's headlight of his motorbike and then there is a big fireball when his bike went up.
'So it should have been a clear-cut case. It should have been simple and I promised Harry and we promised Harry as a family when we'd lost him that night, when we were talking to him in the hospital when we'd lost him already, that we would make sure justice was done.
'We thought it would be an easy one, an easy case, with all the evidence that the Northamptonshire Police have, but clearly not and that's why we're here.'
Ms Charles added: 'Of course she's suffering, we've known all along she would be suffering. Her children must be suffering, you know, two of them were in the car and that's horrific.
'Our lad wasn't a little lad, the car was extremely damaged as well as Harry.
'We're not inhumane, we still don't wish her any ill harm but we need to hear it from her, in her own words, in a room, on our terms, in the UK with therapists and whoever else can help us, mediators.
'But just hearing it through a statement, we're seven weeks in now, it's a bit too much too little too late, I'm afraid.'
'We just want to know that she is being brought back to the UK. You know, that would be a huge step in the right direction.
'It's the only right thing to do. It's the only humane thing to do.
'And we would hope then that we can try to start to move forward and the UK justice system do whatever they feel is right because with it being seven weeks later we're not sure if we can be involved with trying to reduce her sentence, which is what we said we would do in the first place.
'They wanted to pursue her or charge her with death by dangerous driving. We spoke to the police right at the beginning, knowing that she had children, we were going to work with them, ask for her sentence to be reduced to death by careless (driving) and ask for a suspended (sentence) so that we didn't take her away from her children although she's robbed us of one of ours.'
She added: 'It was an accident, we understand that, but seven weeks on, and we've had to do this to get an apology just in writing, that's just wrong.' She stopped speaking at this point as she broke down in tears.
Family spokesman Radd Seiger said: 'Back home we are thinking about our strategies and wondering what to do.
'One of the reasons why I'm here is to try and talk to some lawyers who might be able to help us here in the United States. We are determined to get justice for Harry, whatever that means. We will get justice for Harry.'
The 19-year-old's father Tim Dunn said his family can't start grieving until 'this is resolved'.
He said: 'I've always wanted to ask her if she could explain the moment of the crash, find out if she comforted Harry, if she spoke to Harry, find out what her movements were, did she try and call the emergency services, or I don't know, I'm just struggling because I can't imagine my lad being in the ditch and not having any comfort from anybody until the ambulance and police turn up 'X' minutes later.
'When we had the funeral, which was a lovely tribute to him, I thought maybe that was the time we were going to turn the corner, but then it wasn't until a week later when we found out that she had left the country and now it feels like it has gone right back to the night he died.
'There's just no way I can start grieving yet, as a family we can't start, we need this resolved.'
Mr Dunn added: 'Somewhere, somebody has made a decision to give this lady immunity.
'She's not entitled to immunity as it's been said and we've known that from the start.
'On that night there was an accident, a lady made a mistake, she killed our son, she didn't mean to kill him, she didn't mean to have an accident, but you cannot walk away from that and just leave and expect nothing to happen. Our boy died and he deserves to have some justice. That's all we want'.
Speaking to the PA news agency following the press conference, Mr Dunn called on the suspect to 'come out of hiding' and 'set an example' to her own children.
He added: 'Just get on the plane. Face up to what you have done, having left us seven weeks ago with what we have lost - this is 100 times, a hundred times harder than it needed to have been.
'Time is up now. Time is of the essence. Get on the plane. Just face it. Deal with it.
'Then she can move on with her life, her children can hopefully find a way of getting as much therapy as they need because, bless them, two of them were in that car.
'End the suffering. Go back to the UK and face it.'
Mr Dunn also said 'something is not right' after the family were sent a letter from the Foreign and Commonwealth Office explaining that Ms Sacoolas does not have diplomatic immunity.
He said: 'It just doesn't seem to sit right with me.
'It just seems like such a long-winded way around things and I think they just need to stop messing about.'
The family reiterated their hope to secure Ms Sacoolas a suspended sentence, rather than immediate custody, so as not to take her away from her family.
But they said their hopes of a meeting between the two parties should happen 'in her own words, in a room, on our terms' back in the UK.
Earlier today the former couple appeared on national TV in the US said the apology from the US spy's wife arrived 'seven weeks too late' - and described his broken body and final words before he died.
Harry's mother Charlotte told CBS' Gayle King this morning: 'Why has it taken so long? It's seven weeks tomorrow since we lost our boy. We feel that statement should have come out from her right from the beginning instead of getting on a plane and running home.
'We realise that obviously she may not have been given any choice as such under this supposed diplomatic immunity cloak. We don't believe she did – that's being looked into'.
The family has said they will only meet the US woman suspected of causing their son's death if she promises to return to Britain.
His mother Charlotte said: 'I don't see what we would gain from that [meeting her in the US]. If it was a few weeks back, we're one week off from being two months since Harry died.
'We're still very opened to meeting her but it needs to be in a controlled environment in the UK. We've been advised that it wouldn't be the best thing for us to do [meeting in US]. We need counsellors and therapists around us.
She added: 'She needs to get on the plane, she needs to go back to the UK, just do the right thing. It shouldn't be this difficult - she surely didn't have to go'.
Gayle King asked what would they have wanted from Sacoolas if they had stayed in the UK.
Mrs Charles said: 'We've been very, very open right from the start with the UK police that if she'd have stayed in the UK, knowing she was a parent herself, we'd agreed as a family that we would have done all we could to get death by dangerous driving reduced to death by careless driving and try and get her a suspended sentence so we didn't take her away from her children - we were OK with that'.
Gayle then asked: 'Are you now asking for jail time for her?', Harry's mother replied: 'I don't think we're going to have any choice now, we're 7 weeks on and it's taken all this time. I'm not sure the police are going to allow us to intervene now. we don't know where we stand now'.
Spokesman Radd Seiger told Sky News the condition was a 'non-negotiable red line in the sand' if Anne Sacoolas wished to meet with the teenager's parents while they are in America.
Harry, 19, died when his motorbike crashed into a car outside RAF Croughton in Northamptonshire on August 27.
The suspect, 42-year-old Mrs Sacoolas, had fled to the US IN the wake of the fatality, claiming diplomatic immunity.
But that protection is now in dispute after Foreign Secretary Dominic Raab wrote to Harry's parents over the weekend, telling them the government had 'pressed strongly for a waiver of immunity, so that justice can be done.'
Harry's parents, Charlotte Charles and Tim Dunn, flew to the US on Sunday to, as Mr Seiger said, 'put pressure on the US administration to do the right thing'.
Ms Charles said before boarding her flight that she had received a letter from Mrs Sacoolas expressing her 'deepest sympathies and apologies'.
'To be perfectly honest, yes, it's the start of some closure for our family. Having said that sorry just doesn't cut it'.
Earlier, the Foreign and Commonwealth Office (FCO) wrote to the family to say Mrs Sacoolas did not have diplomatic immunity.
Mr Seiger said the Foreign Secretary Dominic Raab's letter stated: 'The US have now informed us that they too consider that immunity is no longer pertinent.'
The letter, sent by Mr Raab to the family, said: 'We have pressed strongly for a waiver of immunity, so that justice can be done... Whilst the US government has steadfastly declined to give that waiver, that is not the end of the matter.
'We have looked at this very carefully... the UK Government's position is that immunity, and therefore any question of waiver, is no longer relevant in Mrs Sacoolas' case, because she has returned home.'
Mr Raab added that the matter was now 'in the hands' of Northamptonshire Police and the CPS.
An FCO spokesman told the PA news agency that the office 'would not be commenting further on the content of the letter'.
Before the letter was sent by the FCO, the family's lawyer Mark Stephens told PA: 'There are approximately 20,000 official diplomats in this country - there's a definitive list of who is and who isn't.
'We know definitively that this guy was not a diplomat and therefore was not entitled to diplomatic immunity. That has a number of consequences.
'That means that the Americans have made a false claim. She would not have been entitled to claim diplomatic immunity.'
Meanwhile, Mrs Sacoolas's legal representative Amy Jeffress, from the law firm Arnold and Porter, said: 'Anne is devastated by this tragic accident.
'No loss compares to the death of a child and Anne extends her deepest sympathy to Harry Dunn's family.'
On Friday, Prime Minister Boris Johnson said America was 'absolutely ruthless' in its safeguarding of Mrs Sacoolas following the decision to grant her diplomatic immunity.
Mr Johnson said although President Donald Trump was sympathetic towards Mr Dunn's family's views on the use of diplomatic immunity, the US was 'very reluctant' to allow its citizens to be tried abroad.
Speaking of taking their campaign to the US, Mr Dunn's family said in a statement that they 'continue to live in a nightmare' and have so far been unable to grieve after his death.
A statement released on behalf of the family said: 'As if losing Harry was not enough, they now find themselves having to expend enormous time and energy, which they can ill afford, generating sufficient publicity to garner public support to persuade the US government to help achieve closure and return the driver Mrs Sacoolas to England to face the consequences of her actions.'
Mrs Charles said: 'The letter from the FCO was amazing, we felt like we finally had a breakthrough, we finally had confirmed that the immunity that we didn't think she had has been confirmed, that she doesn't have it, certainly since she absconded back to the USA.
A statement from her lawyer is promising that we may be able to hopefully get a meeting put together – whether it's face to face or lawyer to lawyer, not really sure on that basis yet but fingers crossed we're stepping in the right direction.'
Mrs Sacoolas's lawyers said she was 'devastated' and has expressed a desire to meet with the teenager's family, who have arrived in New York in their quest for justice.
Harry's parents are planning to give a series of interviews with America's main TV networks to heap pressure on the US government to hand Mrs Sacoolas over.
They will then travel to Washington DC to meet senior figures in the US government to express their outrage at the handling of the case.
Their lawyer Radd Seiger told the Mail: 'Harry's parents want to look the US President in the eye and ask him to resolve this painful situation. He needs to understand they are utterly heartbroken.
'We will not rest until we have Mrs Sacoolas back in the UK. That's the only way they can get closure.'
Mr Seiger said Mrs Sacoolas, 42, has been asked four times if she would be willing to return to the UK, and on each occasion she failed to respond to the question.
He added: 'Harry's family just want a direct answer as to whether she will to back to the UK and continue to help the police with their investigation.
'We've asked the same question four separate times and on each occasion this question is ignored. That's unacceptable.'
Mrs Charles, Harry's mother, said that Mrs Sacoolas's response to the crash 'just doesn't cut it'.
'My opinion on Anne Sacoolas now wanting to come forward and say sorry... is not really quite enough,' she told Sky News.
'But I'm still really open to meeting her, as are the rest of us. I can't promise what I would or wouldn't say, but I certainly wouldn't be aggressive.' Harry's parents are reluctant to meet the mother of three unless she gives some sort of assurances that she is willing to be extradited to the UK.
But the matter may now be taken out of her hands if the Crown Prosecution Service applies to the US to extradite her. As the wife of a US intelligence officer, Mrs Sacoolas initially claimed diplomatic immunity and fled the UK after the crash just outside the military base.
Harry suffered horrific injuries in the crash and died later in hospital.
Mrs Sacoolas had pulled out of the base, a US spy hub, on the wrong side of the road and collided with the teenager's motorbike on the brow of a hill.
New road markings and a sign have appeared outside the base. Arrows indicating the direction of travel have been painted on each side of the road and a yellow 'Please Drive on Left' sign has also been placed on the roadside.
Home Secretary Priti Patel yesterday played down suggestions that Mrs Sacoolas could be extradited from the US.
Asked on BBC1's The Andrew Marr Show whether this could happen, she said: 'It very much seems that the lady in question wants to start co-operating with the discussions and the investigations and I think that we should support that.
'We need to ensure that justice is done but obviously that co-operation with this investigation takes place. That is absolutely right.'