On August 28, 2003, pizza delivery man Brian Douglas Wells robbed a PNC Bank near his hometown of Erie , Pennsylvania , United States. Upon being apprehended by police, Wells died when an explosive collar locked to his neck detonated. The FBI investigation into his death uncovered a complex plot described as "one of the most complicated and bizarre crimes in the annals of the FBI". [1] https://www.wired.com/story/collar-bomb/