Forensic Files (1996)

S10E34 Penchant for Poison

Title: Taste of Deceit Plot: What appeared to be three disconnected fatalities turned out to be the work of a methodical serial killer. This perpetrator was meticulous, employing a tasteless and odorless poison to carry out the crimes. However, investigators caught a break when they discovered that the toxin possessed a distinctive chemical composition, providing a crucial lead in their pursuit of the murderer.