On February 15, 2019, 45 year old Gary Martin, an employee at the Henry Pratt facility located in Aurora, Illinois arrived for work at approximately 6:45 a.m. After clocking in, he spoke to some co-workers and expressed concern of being terminated over a safety violation that happened the previous day. During one of the conversations, Martin said, "if I get fired, I'm going to kill every motherf****r in here" and "I'm going to blow police up." At approximately 1:00 p.m., Ma