Pennsylvania grocery store employee kills 3 coworkers, then himself, police say

Police say "this is a contained incident" and "the public is not in any danger."

— -- A grocery store employee in Wyoming County, Pennsylvania, shot and killed three of his co-workers early this morning before killing himself, the Pennsylvania State Police said.

The gunman, 24-year-old Randy Robert Stair of Dallas, Pa., had been working inside a Weis Market near Scranton since 11 p.m. Wednesday. At about 12:50 a.m. today, he pulled two shotguns from a duffel bag and fatally shot three co-workers, police said.

Stair "continued firing shots throughout the store," police said, before fatally shooting himself in the head.

The police said they "believe this is a contained incident," adding that "the public is not in any danger."

The victims were identified as 63-year-old Terry Lee Sterling, 26-year-old Victoria Todd Brong and 47-year-old Brian Hayes, police said.

The grocery store chain offered condolences to the families.

"We are deeply saddened at this tragic loss of life," a spokesman for Weis Markets told ABC News. "Right now our thoughts and prayers are with the families.”

This incident comes three days after a "disgruntled" Florida man returned to a business he was fired from in April, shooting and killing five former coworkers, police said. The gunman in that case also shot and killed himself.