"The teenager arrested in an Ohio school shooting that killed three students didn't know his victims and chose them randomly, a prosecutor said today as the 17-year-old appeared in juvenile court. TJ Lane admitted taking a .22-calibre pistol to Chardon High School along with a knife and firing 10 shots at a group of students sitting at a cafeteria table on Monday morning, the court heard. The hearing came hours after the death toll rose to three, and as schoolmates and locals grappled with the tragedy and wondered what could have set the gunman off in Chardon, Ohio."