London ? The mother of a slain British schoolboy on Monday appealed to her son’s killer to turn himself in and said her family would leave their Liverpool home to protect their other son.

Melanie Jones, whose 11-year-old son Rhys was shot in the neck Wednesday as he returned from a game of soccer, asked the killer to come forward.

“You are not going to be able to live with yourself, it’s going to be on your conscience for the rest of your life,” she said in an interview at a Liverpool police station.

Ten people, many of them teens, have been arrested in connection with Rhys’ death since Thursday, although all have been released on bail or freed without charge.

Police say Rhys might have been the unintended victim of gang warfare in his home city of Liverpool in northwest England.

The boy’s death has shocked Britain, where gun crime is relatively rare. A string of high profile shootings and stabbings involving children has raised concerns about guns and gang violence in the country.