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 police.

The 19-year-old suspect, Nikolas Cruz, had been expelled from Marjory Stoneman Douglas High School for "disciplinary reasons", said Broward County Sheriff Scott Israel.