Trump shooting: Secret Service changes story on local SWAT team position CNBCSecret Service spotted Trump rally shooter on roof 20 minutes before gunfire erupted ABC NewsSecret Service Head to Testify to US Congressional Panel on Trump Shooting U.S. News & World ReportSecret Service was told police could not watch building used by Trump rally shooter The Washington PostTrump rally shooting: Not enough Secret Service personnel at event, former agent says FOX 10 News Phoenix