Police say a body found in bushes at a Phoenix suburb has been positively identified as the man who killed a company CEO and critically wounded a lawyer.

A landscaper in Mesa found the body of Arthur Douglas Harmon, 70, early Thursday morning, one day after the shooting at a north-central Phoenix office building. Authorities say the rental car he was driving was found nearby in a parking lot.

Police say Harmon died of an apparent self-inflicted gunshot wound, and a handgun was also found.

The shooting came at the end of a mediation session over a lawsuit Harmon filed against a company in a contract dispute.

Killed in the Wednesday shooting was Steve Singer, 48, CEO of Fusion Contact Centers of Scottsdale. Wounded were lawyer Mark Hummels, 43, and a 32-year-old woman whose identity has not been released. Hummels was reported to be on life support and not expected to survive, while the woman suffered non-life threatening injuries, authorities said.

Court documents show Harmon was due to go to a law office in that building for a settlement conference in a lawsuit he filed in April.

The documents show Fusion hired Harmon to refurbish office cubicles at two California call centers, but a contract dispute arose.

Fusion says Harmon was paid nearly $30,000 under the $47,000 contract. But Fusion asked him to repay much of the money when it learned the cubicles couldn't be refurbished.

Harmon was suing for the rest of the contract plus damages and other reimbursement.