PHOENIX (AP) — A landscaper in the Phoenix suburb of Mesa found a body in bushes that matches the suspect in an office shooting that killed a man and critically wounded another.

Authorities say the rental car that 70-year-old Arthur Douglas Harmon was likely driving was also found nearby early Thursday in a parking lot.

The person who was found died of an apparent self-inflicted gunshot wound. Police say a handgun was also found.

Police say that after Wednesday’s shooting, a witness got in his own car and drove after the rental car, and at one point Harmon got out and shot at that witness.

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