Nikolas Cruz massacred 17 people in the deadliest high school shooting in US history - with sickening details of his life emerging after his horrific nine-minute attack.
The 'gun crazy outcast' gunned down 14 students and three members of staff at the Stoneman Douglas High School in Parkland, a suburb of Miami, Florida, in 2018.
The evil killer, who was armed with an AR-15-style rifle, multiple magazines of ammunition, a gas mask and smoke grenades, had been expelled from the school for 'disciplinary reasons' the year before.
