Former classmates of Omar Mateen claim the Orlando mass shooter was a schoolyard bully who once threatened to bring a gun to school and "kill everyone he didn't like." At the time, says Leslie Hall, Mateen was just in fifth grade. Additionally, one of Mateen's former teachers characterizes him as a violent bully who specifically targeted girls with insults. "He was very disrespectful," Hall told the New York Daily News. "He was spitting in teachers' faces."
Read it at New York Daily News