 So police tell us three men in the crowd were shot. One of those men was killed. Witnesses say that man's family was screaming for help after he was gunned down there. That video that we're also going to pull up shows the gunman on a nearby rooftop that we're talking about. The FBI has identified the shooter as Thomas Matthew Crooks of Bethel Park, Pennsylvania. So where is that? That's about a 45 minute drive from where we are at this rally where this all went down. The 20 year old was a registered Republican, according to state voting records.