American serial killer Leonard Lake used cyanide capsules sewn into his clothing upon arrest to avoid questioning. "After his 1985 arrest on unrelated charges,

American serial killer Leonard Lake used cyanide capsules sewn into his clothing upon arrest to avoid questioning. "After his 1985 arrest on unrelated charges, Lake swallowed cyanide pills that he had sewn into his clothing and died four days later." https://en.wikipedia.org/wiki/Leonard_Lake https://en.wikipedia.org/wiki/Leonard_Lake