In 1986, Susan Snow died after taking Excedrin capsules contaminated with cyanide. Her death prompted a recall and an investigation, which turned up more bottles of poisoned pills. 2 of those bottles were at the home of Stella Nickell. Her husband Bruce had recently died, and Stella insisted his death be re-investigated in light of Sue’s death. When it was found that Bruce also died of cyanide poisoning, investigators worried there was a serial poisoner at work. The truth was that only one person committed the poisonings, and the identity of the killer would be revealed by some tiny green crystals. Hosts: Colleen O’Brien, Erica White. Audio Supervisor: Tommy O’Brien. Theme Music: 'The Drama' by Rafael Krux (orchestralis.net).