CHICAGO (AP) — The gunman who fatally shot three people in a law firm’s high-rise office before he was killed by police felt cheated over an invention, authorities said Saturday.
Joe Jackson forced a security guard at gunpoint to take him up to the 38th floor offices of Wood, Phillips, Katz, Clark & Mortimer, which specialized in intellectual property and patents. He carried the revolver, a knife and a hammer in a large manila envelope and chained the office doors behind him, police said.
Jackson, 59, told witnesses before he was shot that he had been cheated over a toilet he had invented for use in trucks, Police Superintendent Phil Cline said.
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