Colleagues struggle after deadly workplace shooting

HARRIS COUNTY, TX (KTRK) -- Relatives and colleagues of a man killed in a workplace shooting say they are trying to come to grips with his death.

Mike Dawid was killed just as the workday began on Wednesday at Knight Transportation in west Harris County.

VIDEO: Victim, suspect's families speak after deadly workplace shooting

Family members are still trying to cope with the news that their loved on was fatally shot at his job in Katy.

The company says they will have counselors on hand this morning to help those co-workers who saw everything play out.

Marion Guy Williams allegedly entered the business carrying two guns. Employees say he appeared to be on a mission.

Williams was a former employee fired from the trucking company last month.

VIDEO: Fired employee kills co-worker and himself at Katy-area business

Fired employee kills co-worker, self at business

"He said, 'You ruined my life,'" one employee tells Eyewitness News.

The 65-year-old gunman's sister says she received a text message from him before the shooting. It simply read, "I'm sorry we didn't get along."

As you can imagine, Dawid's family is still in shock. His brother-in-law said Dawid was always smiling, a great father and a loving husband.

PHOTOS: Katy-area workplace shooting