Phoenix police say they believe they have found the body of the man responsible for injuring three people at an office building in Glendale, Arizona on Wednesday when he opened fire.

The man has been identified as Arthur Douglas Harmon, 70. It is believed he had been involved in a contract dispute with a company and had gone to the office building for a mediation session, where he subsequently opened fire.

Police recovered Harmon's car on Thursday, and they say the body of the older man was found inside.