Nikolas Cruz, the suspect in Wednesday’s horrific massacre at a Florida high school, was allegedly reported to the FBI in September after he left a comment on a bail bondsman’s YouTube channel saying that he was going to be a “professional school shooter.” The former student at Marjory Stoneman Douglas High School had previously been expelled for disciplinary problems prior to the mass shooting that left 17 people dead.In a YouTube video published on the evening of the attack, Ben Bennight, a Mississippi bondsman, explained that he was contacted by the FBI at approximately 3 p.m. about a comment on...