BENTON, Ill. (AP) — A Chicago man who faces up to 40 years in prison after pleading guilty to making bomb threats in a self-declared “war” on Southern Illinois University in Carbondale is headed back to federal court for his sentencing hearing. Derrick Dawon Burns admitted in August 2015 to sending four threatening letters to students, employees and campus police in 2012 and 2013. The FBI was also an intended recipient. Three of the letters were entitled “The War on SIU.” One was placed in a campus mail box and the others found in mail sorting machines. A sentencing hearing for the former SIU student is scheduled for Tuesday afternoon in Benton. He faces up to 10 years in prison for each charge. Burns was found competent to stand trial after a psychiatric exam.