Gunman Dead After Killing 2 in St. Louis Workplace At least three shot, one dead at ABB Power building By Kevin Spak, Newser Staff Posted Jan 7, 2010 8:54 AM CST Updated Jan 7, 2010 11:56 AM CST 26 comments Comments The St. Louis Gateway Arch is seen Dec. 4, 2006. (AP Photo/James A. Finley) (Newser) – The gunman in a workplace shooting spree in St. Louis this morning was an employee who is presumed dead, police say. Timothy Hendron, 51, who killed two and wounded five, was suing ABB Power and its pension review committee, the St. Louis Post-Dispatch reports. He used an assault rifle and also carried a handgun. Police got a call at 6:30am from a distraught woman inside the building and rushed to the scene. Some employees ran to the rooftop to escape, and at least one barricaded himself in a maintenance room. Reports from the scene were sketchy and chaotic, but it appears the gunman was on the loose for at least an hour. At one point a dispatcher said the subject was “outside still shooting,” but later police radio chatter suggested that shots were still being fired inside the building.