Hundreds of bikers have ridden in convoy along the road where Harry Dunn was killed to show solidarity with his family.
Harry, who was 19, had been on his motorbike when he was involved in a collision with American Anne Sacoolas in August.
She'd been driving out of RAF Croughton in Northamptonshire when the crash happened, and as the wife of a US diplomat the Foreign Office said she was entitled to claim diplomatic immunity. She then left the country.
Mrs Sacoolas had allegedly been travelling on the wrong side of the road when she hit Harry head on. He suffered multiple injuries and died.
Bikers from across the UK drove past RAF Croughton, a US spy base, then onto the nearby village of Charlton, where Harry grew up.
One biker told Sky News he was riding in support of Harry's family "because it's the right thing to do"; another said they felt it was "very unfair what happened to Harry".
Harry's parents, Charlotte Charles and Tim Dunn, watched as the bikers rode into the tiny village.
Mr Dunn said: "I'm hoping it shows the authorities how much the people of the country are behind us and how much they want the truth about Harry's death."