A German teenager accused of killing a child and a 22-year-old acquaintance, then posting pictures of the crimes online, is going on trial.
Marcel Hesse (aged 19) allegedly lured a nine-year-old neighbour out of his home in the western city of Herne in March and then stabbed the boy.
The discovery of the body prompted a three-day manhunt before Hesse turned himself in.
Police later found the body of a former school friend of Hesse's at a nearby apartment.
Hesse's lawyer, Michael Emde, said his client has shown no regret over his alleged actions.
If the Bochum regional court decides to try Hesse as an adult, he could face up to 15 years in prison.
The trial, which starts toay, is expected to last until the end of October.