Mpls. Heroin Dealer Found Guilty In Death Of Little Falls TeenA Minneapolis man has been charged with the murder of a Little Falls woman who died of a heroin overdose. According to the Morrison County Attorney’s office, 30-year-old Keon “Bird” Mangun sold heroin to Brandon Bedford in north Minneapolis on Feb. 27, 2012. Bedford then gave the heroin to 19-year-old Miranda Gosiak of Little Falls on that evening and on the afternoon of Feb. 28, when she died of an overdose. A Morrison County District Court jury returned a guilty verdict against Mangun Wednesday evening on a charge of 3rd-degree murder.