One dead after 3 shot at Phoenix mortgage office, gunman sought

A shooting at a Phoenix office complex on Wednesday left one man dead, two wounded, and two others being treated for stress. The suspected gunman, identified by police as 70-year-old Arthur Douglas Harmon, is still being sought.

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

Steven D. Singer, 48, the CEO of a Scottsdale call center, died after being shot in the attack. A man and woman were also shot.

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

Hummels, 43, 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 on Wednesday morning.

Thompson said police believe that one man was responsible for the shooting. The suspect, Arthur Harmon, remains at large, and is possibly armed with two handguns, police said.

Police said the shooting was not believed to be a random act.

Police described Harmon as a 6' tall white male, weighing about 220 pounds. He was last seen wearing a red shirt and blue jeans.

Harmon was reportedly driving a white 2013 Kia, with the Arizona license plate AVS-2052, according to the Department of Public Safety.

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. 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, 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."

Earlier 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.