In June of 1986 terror struck Seattle, Washington when people began to die seemingly at random after taking an over the counter pain medication: Excedrin. As investigators rush to try and stop a maniac spreading terror through the state, a chilling plot involving cyanide and one of the oldest motivations for murder: money.

https://www.amazon.co.uk/Bitter-Almonds-Mothers-Daughters-Seattle-ebook/dp/B00BP3QUMS

https://murderpedia.org/female.N/n/nickell-stella.htm

https://www.history.com/this-day-in-history/woman-convicted-for-tampering-with-excedrin

https://people.com/archive/killing-her-husband-wasnt-enough-for-stella-nickell-to-make-her-point-she-poisoned-a-stranger-vol-30-no-1/

https://www.historylink.org/File/5643