Pennsylvania police commissioner throws cold water on Secret Service ‘sloped roof’ concerns: ‘I cannot agree’ Fox NewsPennsylvania state police commissioner reveals stunning details about Trump shooting CNNOfficers Left Post to Look for Trump Gunman, Top Cop Says The Daily BeastTrump rally gunman fired 8 shots in under 6 seconds before he was killed, analysis shows CBS NewsPennsylvania State Police chief testifies about Donald Trump assassination attempt BBC.com