Updated: 8 p.m. | Posted: 6:26 a.m.
A masked gunman in body armor opened fire early Sunday in a popular entertainment district in Dayton, Ohio, killing nine people, including his sister, and wounding more than two dozen before he was quickly slain by police, officials said.
Connor Betts, 24, was armed with a .223-caliber rifle with magazines capable of holding at least 100 rounds of ammunition and squeezed off dozens of shots before he was gunned down no more than 30 seconds after his rampage began, Police Chief Richard Biehl said.
Surveillance video shared by police showed officers shot Betts at the doorstep of further destruction, just stopping him from entering a bar where some people took cover when the chaos broke out around 1 a.m. in the historic Oregon District.
Had he gotten inside the bar, the result would have been "catastrophic," Biehl said.
It was the second U.S. mass shooting in less than 24 hours, and no motive has been explained.
Betts' 22-year-old sister Megan was the youngest of the dead — all killed in a nightlife hotspot of bars, restaurants and theaters that is considered a safe area downtown, police said.
Betts was a familiar face at another bar southeast of Dayton in Bellbrook, a short drive from his home, where he was known as an ever-friendly, happy guy who sometimes came in for a beer or two and never made trouble.
Bartender Andy Baker said Betts was at Romer's Bar & Grill last Monday and seemed fine. Baker said when he saw Betts identified as the shooter, he thought: There is no way that's the guy.
Fellow customer Mike Kern said he sometimes played trivia at Romer's with Betts, who was good for answers about current events and pop culture and was "the kind of kid you'd want as a son."
"I never heard him talk about violence, say a racist word, or anything like that," Kern said.
The gunman was white and six of the nine killed were black, police said. Although they'll investigate the possibility of a hate crime, they said the quickness of the rampage made any discrimination in the shooting seem unlikely.
They identified the other dead as Monica Brickhouse, 39; Nicholas Cumer, 25; Derrick Fudge, 57; Thomas McNichols, 25; Lois Oglesby, 27; Saeed Saleh, 38; Logan Turner, 30; and Beatrice N. Warren-Curtis, 36.
Mayor Nan Whaley said at least 27 more people were treated for injuries, and at least 15 of those have been released. Several more were in serious or critical condition, hospital officials said at a news conference Sunday morning. Some suffered multiple gunshot wounds and others were injured as they fled, the officials said.
Betts was from Bellbrook, southeast of Dayton. Bellbrook Police Chief Doug Doherty said he and his officers weren't aware of any history of violence by Betts, including during high school, and had no previous contact with him.
Bellbrook-Sugarcreek Local Schools also confirmed Betts graduated in 2013 but didn't immediately release information about his records.
Brad Howard said he went to school with Betts and had known him for two decades.
"The Connor Betts that I knew was a nice kid," Howard said. "The Connor Betts that I talked to I always got along with well."
More recently, Betts was taking college classes and working at an eatery. Sinclair Community College confirmed he attended there and studied psychology but wasn't enrolled this summer. Chipotle confirmed he worked at one of its restaurants but released no other details.
Police blocked access in Betts' neighborhood, where neighbor Stephen Cournoyer said he often saw Betts mowing the lawn or walking the dog.
"He seemed like a good kid," Cournoyer said. "He wasn't a speed demon, didn't do anything crazy. But that's not to say... I mean, obviously he had an issue."
Nikita Papillon, 23, was across the street at Newcom's Tavern when the shooting started. She said she saw a girl she had talked to earlier lying outside Ned Peppers bar, where Betts was slain at the entrance.
"She had told me she liked my outfit and thought I was cute, and I told her I liked her outfit and I thought she was cute," Papillon said. She herself had been to Ned Peppers the night before, describing it as the kind of place "where you don't have to worry about someone shooting up the place."
"People my age, we don't think something like this is going to happen," she said. "And when it happens, words can't describe it."
Tianycia Leonard, 28, was in the back, smoking, at Newcom's. She heard "loud thumps" that she initially thought was someone pounding on a dumpster.
"It was so noisy, but then you could tell it was gunshots and there was a lot of rounds," Leonard said.
Staff of an Oregon District bar called Ned Peppers said in a Facebook post that they were left shaken and confused by the shooting. The bar said a bouncer was treated for shrapnel wounds.
A message seeking further comment was left with staff.
President Trump was briefed on the shooting and praised law enforcement's speedy response in a tweet Sunday. The FBI is assisting with the investigation.
Gov. Mike DeWine visited the scene after earlier ordering that flags in Ohio remain at half-staff.
DeWine, a Republican, said policymakers must now consider: "Is there anything we can do in the future to make sure something like this does not happen?"
Both of Ohio's two U.S. senators visited the scene of the mass shooting. Democratic Sen. Sherrod Brown said responding with thoughts and prayers wasn't enough and stronger gun safety laws are needed. Republican Sen. Rob Portman said the discussion must include not just policy changes, but issues such as mental health support.
Whaley said more than 50 other mayors also have reached out to her.
A family assistance center was set up at the Dayton Convention Center, where people seeking information on victims arrived in a steady trickle throughout the morning, many in their Sunday best, others looking bedraggled from a sleepless night. Some local pastors were on hand to offer support, as were comfort dogs.
The Ohio shooting came hours after a young man opened fire in a crowded El Paso, Texas, shopping area, leaving 20 dead and more than two dozen injured. Just days before, on July 28, a 19-year-old shot and killed three people, including two children, at the Gilroy Garlic Festival in Northern California.
Sunday's shooting in Dayton is the 22nd mass killing of 2019 in the U.S., according to the AP/USA Today/Northeastern University mass murder database that tracks homicides where four or more people were killed — not including the offender. The 20 mass killings in the U.S. in 2019 that preceded this weekend claimed 96 lives.
Whaley said the Oregon District has reopened, and a vigil was planned Sunday evening. The minor league Dayton Dragons who play in nearby Fifth Third Field postponed their Sunday afternoon game against the Lake County Captains "due to this morning's tragic event."
The shooting in Dayton comes after the area was heavily damaged when tornadoes swept through western Ohio in late May, destroying or damaging hundreds of homes and businesses.
"Dayton has been through a lot already this year, and I continue to be amazed by the grit and resiliency of our community," Whaley said.
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