School shooting suspect made 'disturbing' social media posts

The suspect in a deadly rampage at a Florida high school is a troubled teenager who posted disturbing material on social media before the shooting spree that killed at least 17 people, according to a law enforcement official and former schoolmates.Broward County Sheriff Scott Israel said the 19-year-old suspect, Nikolas Cruz, had been expelled from Marjory Stoneman Douglas High School for "disciplinary reasons.""I don't know the specifics," the sheriff said.However, Victoria Olvera, a 17-year-ol