German prosecutors say they have filed criminal charges against the father of a teenager who killed 15 people in a shooting spree in March.
Spokeswoman Claudia Krauth said Friday that Tim Kretschmer's father was charged with 15 counts of negligent manslaughter. No trial date has been set.
The 17-year-old Kretschmer killed nine students and three teachers at his former high school in southwestern German town of Winnenden before fatally shooting three others elsewhere.
Authorities have said he used a 9mm Beretta pistol that belonged to his father, Joerg _ who, they say, kept the gun unsecured in his bedroom in violation of German law.
Tim Kretschmer then killed himself during an exchange of gunfire with police.