Prosecutors sought on Thursday a sentence of 10 to 15 years in prison for the eldest of three teenagers charged in the slaying of a 13-year-old boy at a riverbank in Kawasaki last year.
The case "is particularly heinous among other numerous juvenile delinquencies," a prosecutor said during the trial at the Yokohama District Court, adding that the 19-year-old male "should bear the heaviest responsibility (of the three) as a ringleader" in the killing of Ryota Uemura.
A ruling will be handed down next Wednesday, the court said.