Police in Tennessee have identified the victim of a deadly high school shooting in Knoxville.

Ryan McDonald, 15, was a sophomore who lived with his grandmother and had a condition that left him bald and the target of endless teasing as a child.

The shooting happened in the school's cafeteria before classes started this morning. Police say the suspected shooter was taken into custody minutes later on a nearby street.

Authorities haven't identified the suspect. The district superintendent said the suspect knew the victim. Police say the shooting wasn't a random act.

Students who witnessed the incident described the scene. Chad Griffin, 15, said there was "blood everywhere" and McDonald started "walking and holding his chest." Griffin said he was hit by McDonald's arm as he fell over.