Feds never alerted authorities about San Jose shooter Samuel Cassidy’s manifestos in 2016: report

In 2016, federal officials detained the San Jose man accused of killing nine of his colleagues last week, finding him with books on terrorism and detailed writings about how much he hated the people at his work — but nobody bothered to alert local authorities, according to reports.

Santa Clara County District Attorney Jeff Rosen told USA Today Friday the intel might have helped prevent the mass attack by Samuel Cassidy Wednesday that resulted in the deaths of nine employees at the Santa Clara Valley Transportation Authority light rail hub. “The DA’s office was not notified,” Rosen said, adding he wasn’t aware of a single agency in the area that was told this information. “I would like to have known this in 2016.”