The gunman who carried out a deadly mass shooting in Dayton, Ohio, this month had cocaine and other drugs in his system at the time, a according to a coroner’s report.

In a news conference on Thursday the Montgomery County coroner, Dr. Kent Harshbarger, said cocaine, antidepressants and alcohol were found in Connor Betts’ system when he opened fire with an AR-15 style gun in the city’s historic Oregon District on Aug. 4, killing nine people before police shot and killed him. That shooting came just hours after another deadly gun rampage, this time in El Paso, Texas.

Harshbarger added that investigators also found a pipe device and a clear bag containing cocaine on the 24-year-old Betts.

The coroner also told reporters that two people shot by Betts also were shot by police, but none fatally. He said all the deadly gunshot wounds to the nine victims came from Betts’ weapon.

Harshbarger said police shot Betts about 24 times in all, mostly striking his upper torso and lower extremities.

Dayton Police Chief Richard Biehl said the officers’ goal at the time was to “immediately stop the killing.”

On Tuesday, Biehl said Betts shot 26 people in the span of 32 seconds before responding officers fatally shot him.

Surveillance footage released this week, which was pieced together from several local businesses, showed Betts spending nearly two hours in the area before his spree began.

Betts was first caught on camera in the area at 11:04 p.m. when he parked his car and walked to a bar, Blind Bob’s, with his sister Megan and another companion.

Dayton Police Chief Richard Biehl told reporters at a news conference that 24-year-old Connor Betts, who was armed with a .223-caliber rifle, had a gun that was modified in a way he felt was “fundamentally problematic.”

Biehl also added that if all of the magazines that Betts had were full  — which has yet to be confirmed as police have not had a chance to examine them fully — he would have had a max of 250 rounds, not excluding loose rounds found on the ground near him as well as in a backpack the 24-year-old was carrying at the time. Investigators have so far recovered at least 41 spent shell casings that are believed to have been from Betts.

“You can well understand in a very dynamic and chaotic scene as this was, with people running through the crime scene, with first responders running through the crime scene, with EMS traveling through the crime scene, evidence can be lost,” the police chief told reporters.

Adding shell casings that was recovered from Betts’ weapon, investigators have collected 48 45-caliber casings, 16 .233 casings and one shotgun shell casing that are believed to have been fired from the weapons of the six police officers who “neutralized” the gunman within 30 seconds after the first of “dozens of rounds.”

The police chief said that it’s not known if Betts solely targeted any of his victims in the popular entertainment district early Sunday. However, found it very hard to believe he didn’t recognize his sister, 22-year-old Megan Betts, when he opened fire and killed her and eight others.

“It seems to just defy believability he would shoot his own sister, but it’s also hard to believe that he didn’t recognize it was his sister, so we just don’t know,” Biehl said.

While the gunman was white and six of the nine killed were black, police said the quickness of the rampage made any discrimination factor in the shooting seem unlikely.