Wayne died during a return trip to Pennsylvania from a military post in Detroit. It has been speculated, but never proven, that Wilkinson had him assassinated by poison. Wilkinson is documented secretly undermining him throughout his later career, benefited from his death, and would replace him as commander after his death. Shortly after the Northwest Indian War and Wayne's death, his treaty went into abeyance. Wayne was buried at Fort Presque Isle, where the modern Wayne Blockhouse stands. His son, Isaac Wayne, disinterred the body in 1809 and had the corpse boiled to remove the remaining flesh from the bones. He then placed the bones into two saddlebags and relocated them to the family plot in the graveyard of St. David's Episcopal Church in Wayne, Pennsylvania. The other remains were reburied but were rediscovered in 1878, giving Wayne two known grave sites. His death occurred at Presque Isle, in present-day Erie, on December 15, 1796, during a journey back from military duties in the northwest. The fatal stomach complaint is often identified as a complication of an ulcer, but the historical evidence does not establish every stage of the internal disease with modern certainty. Later events involving the transport and reburial of his remains became unusually memorable, yet they do not explain the original medical cause. The supported final period is illness during travel followed by death away from home, not a new battlefield wound or an execution.