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Gunman who killed 3 co-workers at UPS had filed grievance over excessive overtime

UPS workers hug at the scene where a gunman shot and killed multiple people including himself at a UPS facility in San Francisco, California on June 14, 2017. Several people were shot on Wednesday at a San Francisco warehouse and customer service facility operated by global parcel delivery service UPS, authorities and the company said. UPS spokeswoman Natalie Godwin told AFP the incident involved four workers at the sprawling facility, which employs 850 people. / AFP PHOTO / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)

SAN FRANCISCO (AP) —  A union official says the gunman who shot and killed three people at a UPS warehouse in San Francisco had filed a grievance complaining that he was working excessive overtime.

San Francisco’s chief medical examiner identified the victims as 50-year-old Benson Louie and 56-year-old Wayne Chan, both of San Francisco; and 46-year-old Michael Lefiti, of Hercules, Calif.

Police say the three UPS drivers were killed by 38-year-old Jimmy Lam, who fatally shot himself in the head in front of officers.

Joseph Cilia, an official with a local Teamsters Union, says Jimmy Lam’s grievance filed in March requested that UPS relieve him of working overtime going forward.

Still, Cilia says Lam, a UPS driver, wasn’t angry, and he could not understand why he would open fire on his colleagues at a morning meeting on Wednesday.

Cilia says Lam targeted three fellow UPS drivers. Cilia says two other drivers who were wounded have been released from the hospital and will be OK.