The Broward Sheriff's office in Florida has released a to-the-second timeline of Nikolas Cruz's movements before, during and after the school massacre that left 17 dead and 14 injured.
Nikolas Cruz, 19, is being held without bail for the shooting deaths at a Parkland, Fla., high school
Authorities from Florida and South Carolina to Arkansas and New Jersey responded to copycat threats after the Marjory Stoneman Douglas High School massacre.
The F.B.I. acknowledged on Friday that it had failed to act on a warning last month that Nikolas Cruz might kill people at a school.
A South Florida high school is in the national spotlight after a gunman attacked Wednesday afternoon, killing 17 people.
Broward County Sheriff Scott Israel shared a detailed timeline of how and when suspected gunman Nikolas Cruz shot and killed 17 people at a Parkland, Florida, high school.
Police say a former student opened fire with a rifle at a Florida high school Wednesday, killing 17 and injuring 15