REVEALED: Details emerge about how the ‘suspected’ Trump shooter evaded officers stationed at a second-floor window overlooking the roof and which unit was responsible for security at the building

The US Secret Service has abandoned security at the building from which 20-year-old Thomas Matthew Crooks shot former President Donald Trump and killed a campaign rally attendee, it has been revealed.

Pennsylvania State Police Commissioner Colonel Christopher Paris testified before Congress on Tuesday that the Butler County Emergency Services Unit was responsible for the overall security of the building.

He also revealed shocking details about the events leading up to the shooting.

According to Paris, two emergency services officers were stationed at a window on the “second floor,” above the roof, where Donald Trump’s shooter opened fire.

The officers labeled Crooks as “suspicious” because he was walking near the security zone and pulled out a range finder, but then left their post to search for him on the ground.

The clumsy move gave Crooks the opportunity to climb onto the roof unnoticed.

The emergency response unit is made up of local officers from several counties in Pennsylvania, Paris said.

Officers first became suspicious of Crooks when they saw him walking around the campaign rally without entering the event, he continued.

They saw him from the second-floor window, which overlooked the roof from where Crooks was shooting, Paris testified.

When Crooks produced a rangefinder, their concerns grew even greater and they left their post at the window to search for the suspect, but they left the roof unguarded.

“I know there were two in the building,” Paris said when asked if there were any police officers near the spot where Crooks opened fire.

“They said they were in a window,” he continued.

The Pennsylvania State Police Commissioner subsequently announced that it was these two officers who had initially identified Crooks as a “suspicious” man.

“I was told that at one point, along with other local officers, they immediately began a search after identifying Crooks as a suspect.”

“By them?” asked Rep. Dan Bishop, Republican Party.

“I think they identified Crooks,” Paris replied.

“The criminals never managed to get through the secured area to the event location,” he said, causing great concern among the two officers who saw him and labeled him as suspicious.

“He was considered a suspect by those members, partly because of that. And then at some point he pulled out the rangefinder, which only reinforced that suspicion.”

Nine days after Trump was shot by Crooks, lawmakers and Americans still have many unanswered questions about how the near-assassination attempt was allowed to proceed unhindered.

On Monday, a group of lawmakers from the committee traveled to Butler, Pennsylvania, to investigate the scene of the shooting.

Rep. Eli Crane (R-Arizona) later posted video of the second-floor window that officers had access to.

Bishop played Crane’s video during the hearing and wanted to know if the window in the video is the same one where officers first identified Crooks as a suspect.

“That window was open,” Bishop said after the shooting.

“Was it from this vantage point that the ESU agents spotted Crooks?”

Paris replied, “I don’t know that specific window, but I understand he was first seen through a second-floor window.”

From the back and forth, it became apparent that the officers were monitoring the roof where Crooks had fired shots, but before he opened fire, they left the scene to search for him.

While Secret Service Director Kimberly Cheatle dodged questions from Congress on Monday during a hearing into the near-assassination of Donald Trump at a campaign rally in Butler, Pennsylvania, several leading Republicans were busy investigating the crime scene.

“I’m standing right where the shooter was,” said Rep. Carlos Gimenez (R-Fla.), another committee member, as he stood on the roof of the building where 20-year-old Thomas Crooks shot Trump.

“As you can see, I’m a 70-year-old man and this roof is not that big of a problem,” he said, in an apparent rejection of Cheatle’s excuse that no Secret Service agents were stationed on the building because of its “slope.”

“So if someone tells me that the Secret Service couldn’t have been here, that’s crazy,” he said as he filmed the vantage point. “You can see you have a clear line to the president. It’s not a hard shot.”

Cheatle repeated her bizarre excuse for not placing Secret Service agents on the roof where Gimenez stood during her testimony before the House Oversight Committee on Monday.

The director explained that no officers were stationed at the location because the agency generally “prefers sterile roofs.”

“When we want to do surveillance, whether through anti-sniper operations or other technology, we prefer to have sterile roofs,” Cheatle said.

The embattled director of the Secret Service resigned Tuesday after her horrific testimony before Congress.

However, no senior administration officials were present at Tuesday’s hearing, unlike Chairman Mark Green (R-Tenn.), who criticized the Secret Service, FBI and Department of Homeland Security (DHS) for not sending anyone to answer questions from lawmakers.

“Unfortunately and unacceptable, they have refused to appear before the committee today,” Green said Tuesday of the missing attendees.

He said he and the American people deserve answers to the historic tragedy and that 10 days later, many questions remain unresolved.

‘Why was the roof, where the shooter fired multiple shots, not secured?’

“Who decided not to put anti-snipers on the roof?”

“Why was nothing done to respond?”

“How did the shooter gain access to the roof, despite the presence of federal and local law enforcement in and around the building?”