When someone dies, a death certificate is issued and a body is prepared for its return to nature… most of the time. For so-called "Oklahoma Outlaw" Elmer McCurdy, whose eternal rest was deferred for 66 years, the afterlife proved exhausting. The unbelievable true story of this unclaimed corpse-turned-sideshow attraction is told in the new Broadway musical Dead Outlaw, featuring music and lyrics by David Yazbek and…