YouTube Comment Seen as Early Warning in Shooting Left Little for F.B.I. to Investigate by ADAM GOLDMAN and PATRICIA MAZZEI

By ADAM GOLDMAN and PATRICIA MAZZEI A commenter who shared a name with the suspect in the Florida school vowed to become a “professional school shooter” in a disturbing post that the authorities examined last fall. Published: February 14, 2018 at 07:00PM from NYT U.S. http://nyti.ms/2ELjZPf