In 1983, nationwide panic broke out when seven people unknowingly ingested cyanide and tragically died. Suspects would range from a vengeful soldier to a mentally unstable school shooter, but who was actually responsible for one of the most vile acts of terrorism Chicago has ever seen? Parcasters - After this episode of Unsolved Murders, go check out the abduction of Barney and Betty Hill on our new show Extraterrestrial. Listen at parcast.com/extraterrestrial Learn more about your ad choices. Visit megaphone.fm/adchoices