*(CNN) — Several coworkers of the Walmart supervisor suspected of committing the deadly rampage inside a Chesapeake, Virginia, store said the shooter had exhibited odd and threatening behavior in the past.

Andre Bing, the suspected gunman who worked as a night shift team leader, could be gruff with fellow employees and expressed paranoid views about the government, according to interviews with coworkers.

“He said a lot of disturbing things,” said Donya Prioleau, who said she was in the employee break room when Bing entered and opened fire unexpectedly.

“We don’t know what made him do this,” she said. “None of us can understand why it happened.”

Source: Coworkers Say Walmart Shooting Suspect (Andre Bing) Exhibited Odd and Threatening Behavior | VIDEO