WASHINGTON — The Secret Service's acting director told lawmakers Tuesday that he considered it indefensible that the roof used by the gunman in the attempted assassination of former President Donald Trump was unsecured and said it was regrettable that local law enforcement had not alerted his agency before the shooting that an armed subject had been spotted on a nearby roof.
Ronald Rowe Jr. also testified that he recently visited the shooting site and laid down on the roof of the building where shots were fired in order to evaluate the gunman's line of sight during the July 13 shooting in Butler, Pennsylvania.
''What I saw made me ashamed. As a career law enforcement officer and a 25-year Secret Service veteran, I cannot defend why that roof was not better secured," he said.
The testimony was the most detailed catalog to date by the Secret Service of law enforcement failings and miscommunications, with Rowe accepting blame for his own agency's mistakes while also pointedly criticizing local law enforcement for communication breakdowns that resulted in his agency not receiving information that a gunman, later identified as 20-year-old Thomas Matthew Crooks, had been seen on the roof of a building less than 150 yards (135 meters) from the rally stage where Trump was speaking.
''Neither the Secret Service counter sniper teams nor members of the former president's security detail had any knowledge that there was a man on the roof of the building with a firearm,'' Rowe said. ''It is my understanding those personnel were not aware the assailant had a firearm until they heard gunshots.''
He said that the shooting amounted to a ''failure on multiple levels,'' including a failure of imagination and a ''failure to challenge our assumptions.''
''We assumed that the state and locals had it,'' Rowe said. ''We made an assumption that there was going to be uniformed presence out there, that there would be sufficient eyes to cover that, that there was going to be counter-sniper teams'' in the building from whose roof Crooks fired shots.
''And I can assure you,'' Rowe added, "that we're not going to make that mistake again.''