Piers Morgan and Susanna Reid vowed to continue campaigning for justice, for the grieving parents of teenager Harry Dunn who was killed after a crash in August 2019.
The 19 year old was involved in a head-on collision, with the driver Anne Sacoolas travelling on the wrong side of the road.
Suspect Anne, the wife of a US intelligence official, claimed diplomatic immunity and fled to the US shortly after.
She has yet to return, with the family having faced a long battle for justice which is still ongoing.
Piers and Susanna welcomed Harry’s mother and father back on the show on Tuesday, as it was revealed Anne was now “wanted internationally” after an Interpol notice was issued
As an emotional Charlotte and Tim shared their reactions to the news, Piers reached out to them and said the show would never stop supporting their fight for justice.
He said: “What you have had to endure as a family is an utter disgrace. The idea that this woman ploughed into your son, he dies and she flees the country and has never been held accountable is such a disgrace.
“We said to you many months ago that we will not give up on this story, and we won’t no matter how long it takes, eventually we will get you some form of justice.”
He added: “What is going on is an outrage. We will keep on it, we will keep on this story until justice is done.”
As the interview came to an end, Piers turned to Susanna and shared his outrage as a father for what the family have faced.
Piers commented: “It just angers me so much that story. Can you imagine… I have a son of 19 and if he was killed, and the person driving the car who killed him just fled the country and refused to come back to face justice.
“You would be so incensed, it would make the grief you’re feeling immeasurably worse. How that woman has a conscience.
“How can she in all good conscience do this? How can she not give this family the tiny sucker of just going through accountability, going through a court case.”
Speaking of the update, Charlotte told the hosts: “We shouldn’t have to be going through this. She should never have gone back to the US in the first place.
“But the one major thing for me that came of this, when I read the Interpol notice yesterday, it encourages us and confirms to us that the UK authorities are finally on the same page as us, because they cannot issue a red Interpol notice to anybody, to anyone who was or is covered by diplomatic immunity.
“So that gives us confidence that finally after the eight months of the nine after losing Harry, and the fighting we have done, that the UK authorities are clearly on the same page as us to have taken the decision to put that red Interpol notice out.”
Good Morning Britain airs weekdays at 6am on ITV.