UPS worker threatens boss; multiple guns, body armor found after police pursuit

SUNNYVALE, Calif. (KTLA) -- A UPS worker suspected of threatening a mass shooting at the company's facility in Silicon Valley has been arrested after investigators found numerous firearms and ammunition at his home, police said Monday.

Thomas Andrews, 32, surrendered late Sunday after leading officers on a brief car pursuit on the 101 Freeway, Sunnyvale Police Capt. Dan Pistor said.

Authorities began searching for him a few hours earlier when someone reported that he sent threatening text messages to his employer at the United Parcel Service facility in Sunnyvale.

“Initially he indicated he wanted to fight with the officers, but then he surrendered without injury,” Pistor said.

Detectives who searched Andrews' apartment in Sunnyvale found 20,000 rounds of ammunition, five tactical-style rifles, a shotgun, three handguns and body armor. Several backpacks containing ammunition were found by the front door, Pistor said.

Andrews was booked for investigation of making criminal threats, evading police, driving under the influence and several counts of weapons violations.