Phoenix shooter kills self, second victim 'will not survive'

Suspected Phoenix shooter Arthur Douglas Harmon was found dead Thursday in a Mesa shopping center parking lot from what appeared to be self-inflicted gun shot wounds, police confirmed.

Harmon shot three people at a Phoenix office complex Wednesday morning, police said.

Steven D. Singer, 48, the CEO of a Scottsdale call center, died after being shot in the attack.

Mark Hummels, 43, a partner at Phoenix law firm Osborn Maledon who was injured in the shooting, is not expected to survive, the firm announced Thursday.

The third gunshot victim, Nichole Hampton, 32, is recovering in the hospital.

Police said that Harmon's body was found near Loop 202 and Dobson Road along the Logan Roadhouse restaurant by a landscaper. Officers then located Harmon's white Kia nearby.

Gunfire broke out near a mortgage company on 16th Street north of Glendale Avenue, around 10:30 a.m. Wednesday. Three wounded people were taken to an area hospital, one with life-threatening injuries, said Sgt. Tommy Thompson of the Phoenix Police Department.

Hummels, was shot in the head and neck and underwent surgery, according to an email sent out Wednesday by a colleague in the Phoenix law firm Osborn Maledon.

Hummels represented Singer's firm, Fusion Contact Centers, in a suit filed by Harmon in 2012 over a contract in which the shooting suspect was to refinish call center furniture.

According to court records, Harmon was advanced $29,000 in a deal that he later alleged was a "scam."

An arbitration hearing was scheduled in the case Wednesday morning.

Police said that Harmon became involved in an argument with Singer and Hummels outside the office after the meeting. He shot them both, and Hampton, who was a bystander, Thompson said.

Officers cordoned off Harmon's home near 28th Street and Greenway Road — about seven miles from the shooting scene — until they obtained a search warrant Wednesday afternoon. A search of his home took just minutes in the afternoon.

A neighbor of Harmon's said an officer told her that the Kia was rented, and that his burgundy or brown Bronco or Blazer was missing.

"I don't know what he had to be upset about," said neighbor Tina Rooker on Wednesday, describing Harmon as "grumpy" and "not a people person." He was the neighborhood mechanic, she said, and liked to drink beer in his front yard.

"He's not somebody you say hi to when you go by; you don't get the same response," she said.

Rooker's husband, Stewart, said "I just know him as the race car guy."

Early reports from the scene indicated that up to five people had been shot. Medical workers took two other people from the scene who were being treated for stress, Thompson said.