Two of the future shooters were just infants and a third wasn’t even born yet when Columbine happened. But by the time they each attacked their schools last year, all three young men had drawn inspiration from the pair who committed suicidal mass murder at their Colorado high school on April 20, 1999. “I’m thinking about doing my school the same way,” one commented online prior to opening fire at his former high school in Ocala, Florida, 19 years later to the day.