(KMOV) -- An Alton man who shot himself after he barricaded himself inside a building after deliberately driving a tractor-trailer into the building's loading dock Saturday morning has died.
Police and fire crews from multiple departments were called to the scene at the Gateway Commerce Center, 141 Enterprise Drive, after 51-year-old, Roger W. Adams drove a tractor-trailer into the Schneider’s Trucking building just after 2 a.m, which allegedly caught it on fire.
The suspect was contracted through Schneider and never an official employee.
Crews had to stay on standby for a few hours over concern for their safety after officers were able to look inside to see the suspect was armed with a weapon.
Police say the Illinois Law Enforcement Alarm System was activated to bring additional response units to the scene to help evacuate the building.
Negotiators say they talked with Adams about surrendering, but Adams refused.
At around 11:50 a.m., Adams ended the standoff by a self-inflicted gunshot wound.
He was rushed to St. Louis University Hospital where he was put life support.
Madison County States Attorney Tom Givens said Adams had been dealing with some personal and work related problems..