Identity of remains found under church pew in 1982 linked to Tylenol poisonings

Police identified a man whose remains were found under a church pew in Idaho in 1982 — Matthew Francis Betkouski, a former Lockheed Martin chemist who suffered from severe mental illness. Investigators linked him to unsolved cyanide murders in Tylenol capsules. Before his death, Betkouski reportedly discussed committing "the perfect murder using cyanide".