LAS VEGAS (KSNV) — The man who allegedly opened fire at Turnberry Towers near the Las Vegas Strip last week only got one round off before his rifle malfunctioned and he was shot in return by a security officer, according to an arrest report.

Officers found Andrew Warrender, 32, on the ground in front of the main entrance to the high-rise on Karen Avenue Friday after responding to a 911 call about a shooting.

Investigators learned that Warrender brought an "AR-15 style rifle" to the complex and allegedly fired a round toward a security officer, Las Vegas Metropolitan Police wrote in their report.

The rifle malfunctioned after the one shot, and as Warrender tried to fix it, the security officer fired his gun, hitting Warrender several times.

Police wrote that they determined the rifle was a Stag 6.8 with a casing stuck in the ejection port and a partially chambered cartridge.

The security officer told detectives that a valet employee came up to him and said Warrender "was about to point a firearm at him," according to the arrest report. Warrender came into the front lobby wearing a helmet and holding a rifle, and the security officer heard a gunshot. He saw Warrender holding the rifle and fired five to seven shots.

Detectives reviewed the surveillance video and saw Warrender walk down a staircase and toward the main lobby. The video allegedly shows him firing one shot at someone who ducked down behind a front desk.

"Warrender appears to have a malfunction of the rifle and tries to fix it," police wrote. "He then places the rifle back into his shoulder and again aims the rifle in the direction [of the victim] as he is crouched below the counter. Warrender's finger appeared to press the trigger but because the firearm malfunctioned, no bullet was discharged."

The video shows Warrender walking toward the front entrance and leaving through a revolving door, still holding the rifle, when he is shot by the security officer, police wrote. The officer holds Warrender at gunpoint until officers arrive on scene.

Warrender was taken to a hospital and booked in absentia on suspicion of attempted murder and assault with a deadly weapon. A booking photo was not immediately available.

Police wrote that he underwent surgery and had to be sedated during his recovery, and thus couldn't speak with detectives. Court records indicate he was unable to appear for hearings this week due to medical reasons, but he remains held without bail and his next court hearing is scheduled for July 3.

Witnesses who work at Turnberry Towers told police that Warrender often stayed at the complex. One person described him as "socially awkward" but said that carrying a rifle was "very out of the ordinary." Before the shots were fired, this person asked Warrender if he was okay, and "Warrender replied that he was not okay," according to the arrest report.

Another witness said Warrender was not behaving normally. This person said Warrender normally jokes with them, but he did not speak when he parked on Friday. This person said they did not see a rifle or helmet with Warrender when he arrived on property.