The Half Moon Bay massacre was an apparent workplace violence case. The suspect had been accused of violence against a coworker in 2013, court records show
By Holly Yan, Stella Chan, Christina Maxouris, Casey Tolan and Curt Devine, CNN The 66-year-old man suspected of killing four people at a California mushroom farm he worked at and three others at another nearby site Monday had been accused of trying to suffocate and threatening to kill a former coworker at another job nearly
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