Kosta Kecmanovic, a 13-year-old student at the Vladislav Ribnikar school, has been arrested for murder after stealing his dad's gun and opening fire on his peers and teacher this morning during ...

Kosta Kecmanovic, 13, has been held in a mental institution since the attack in which 10 people died. Expand. Police officers guard the Vladimir Ribnikar school in Belgrade, Serbia, after the mass ...

Under Serbian law, Kecmanovic may not be charged for his crimes because he is under 14 years old and could challenge that he is not legally responsible for his actions because he is too young.

Kosta Kecmanovic, 13, has been held in a mental institution since the attack in which 10 people died. Ireland World ...