Hundreds of motorcyclists have come together to ride in memory of the teenager killed in a collision with a US diplomat's wife.
Harry Dunn, 19, died in Northamptonshire on August 27 after a head-on crash outside RAF Croughton.
Anne Sacoolas, the wife of an American intelligence officer, is believed to have been driving on the wrong side of the road when she hit Mr Dunn’s motorbike.
The 42-year-old is a suspect in the investigation into Mr Dunn's death but she left the country in the weeks after the incident, claiming diplomatic immunity back in America.
On Sunday, hundreds of bikers joined together to pay tribute to Mr Dunn, whose twin brother Niall previously described as a motorcycling fanatic who "loved anything on wheels".
The motorbike convoy followed his last ride through Brackley.
The bike ride also showed support of the Dunn family's aim to bring Sacoolas back to the UK, where she would face questioning.
Bikers added green bows - a symbol of the campaign - to their bikes, while members of the Banbury Scooter Club had placed on their scooters Justice4Harry stickers.
Mr Dunn's mother Charlotte Charles was pictured wiping away tears as she stood alongside husband Bruce at the event on Sunday.
The teenager's father Tim Dunn was also seen with his partner Tracey in Brackley.
Harry's parents spoke after the convoy about the support they have received.
Speaking to Sky News, Charlotte said: "It's pretty much the only thing that's keeping us going at the moment, the only thing that's making us smile. broke down It means an awful lot.
"We had no idea when we started on this Justice4Harry how hard it would but, we are going to keep fighting. We're now not only trying to get justice for Harry we are trying to get justice for anyone else in the future who this could possibly happen to.
"There is absolutely no way we will back down or tire of doing this."
Tim Dunn said: "We are struggling with the way things are going with the authorities, we're getting further away from what we want rather than closer. They don't seem to want to talk to us.
"So, if it wasn't for the support of the country and the people sending us messages I don't know how we would be getting through this."
On Friday, Mr Dunn's parents said they were deeply frustrated by the lack of progress by the Crown Prosecution Service (CPS), who are yet to make a decision whether to charge Sacoolas.
The parents said they were "on their knees" after 12 weeks of no action.
The CPS have said they are "doing everything possible to reach a charging decision as soon as we can". Adding, they did not know how long the process would take.
