Steve Singer, the man police say was shot and killed by an angry contractor on Wednesday in Phoenix, owned Scottsdale, Ariz.-based Fusion Contact Centers.
Fusion provides outsourced contact-center agents and services for enterprises.
Singer died after a mediation did not go in shooter 70-year-old Arthur Douglas Harmon's favor. Harmon also shot Mark Hummels, Singer's lawyer who was overseeing the meeting, in the neck and back. Hummels died a couple of days later after he was taken off life support.
Harmon was found shot to death Thursday morning in a Mesa, Ariz., parking lot. Police say it was a suicide.
Harmon insisted Fusion Contact Centers had not paid him in full for contract work performed; Singer and Hummels said Harmon had been paid for work not done.