Dispute over $100 repair bill may have sparked Half Moon Bay killings

THE suspected gunman accused of killing seven people last week at two farms in Half Moon

ay south of San Francisco told investigators a dispute with his supervisor over a bill for machinery repair sparked the massacre, authorities said.

The suspect, whom authorities identified as Chunli Zhao,

, told law enforcement he became angry after being told by his supervisor at California Terra Garden, the site of the first attack, that he had to pay 1 to service a forklift that was damaged in a crash with a bulldozer, which was reported in local news outlets and confirmed by San Mateo County District Attorney Steve Wagstaffe.

Zhao told law enforcement he became agitated trying to explain the crash was not his fault. He told police he then killed the supervisor and a colleague, authorities said.

“This was the final straw,” Wagstaffe told The Times.

The other victims were not involved in the dispute over the crash, but Wagstaffe said the suspect told investigators he went about targeting people with whom he had had other problems in the past.

After the first two people were shot, Wagstaffe said, Zhao went about to “settle all (his) grievances.” The dispute was first reported by N C ay Area.

Zhao was arrested last week after two shooting incidents in which seven workers were killed and another was injured at California Terra Garden and at Concord Farm, the site of the second attack, where the suspect had also worked.

In an interview last week, San Mateo County Sheriff Christina Corpus told The Times that Zhao “snapped” and “targeted” the victims.

Zhao admitted to the killings in a jailhouse interview with KNTV-TV and expressed regret, said reporter anelle Wang, who spoke with the suspect in Mandarin at the San Mateo County jail in Redwood City.

Wang said Zhao described being bullied at work. According to Wang, the suspect also said that he was suffering from “some sort of mental illness” and that he was “not in his right mind” at the time of the shooting.

Wagstaffe told

The Times that the suspect s comments to the TV station were “consistent with what he told law enforcement.” Wagstaffe declined to provide further details.