Visitation Sunday for Argonne National Laboratory firefighter who died on duty

A visitation will be held Sunday in Orland Park for a firefighter who died one day after a smoke investigation at Argonne National Laboratory in Lemont.

According to the U.S. Fire Administration, firefighter/paramedic Scott Williams, 46, responded to a smoke investigation in one of the facility's laboratories on Saturday, Nov. 20. He returned to the station, and during a shift change on Sunday morning was found unresponsive in his bunk. He was pronounced dead at the scene.

The cause of death is under investigation.

Williams had been a member of the Argonne Fire Department for three years. A Facebook post by the Illinois Army National Guard said that Williams was also a Staff Sergeant who had served in the Guard for 15 years, including a deployment to Afghanistan.

The visitation will be held from 2 to 8 p.m. Sunday at Lawn Funeral Home, 7732 W. 159th Street in Orland Park. A funeral service will take place at 9:30 a.m. Monday with a 12:30 p.m. burial to follow at Abraham Lincoln National Cemetery in Elwood.