In a horrific incident, a teenage boy gunned down students at a California high school on his 16th birthday. The boy killed two people and injured three before he turned the pistol on himself. The gunman was taken into custody as per the police. Horrified students described barricading themselves into classrooms while others fled as news of the boy opening fire spread. The teen was found among the wounded by first responders, said Los Angeles County Sheriff Alex Villanueva. The dead were a 16-year-old girl and a 14-year-old boy. The other three wounded, one boy & two girls, were aged between 14 &15.