Kristeras Neniškis will always be fifteen. Smart, athletic, helpful and very responsible – just like a young man, not a boy, his mother says.

"He wrote this at school in December. That you shouldn't give up. You shouldn't doubt or hesitate, but take action and dare. But something broke him," said Kristers' mother Inese Nenišķe.

Krister's motorbike, which he was allowed to ride after his 16th birthday, remains undriven. "None of us ride that motorbike because it was bought f...