BEND, OR -- The Deschutes County District Attorney has asked a judge to dismiss charges "without prejudice" against Brian Lee Wynn, accused of killing a man in May. 

David Hickman was found dead at his campsite near the Bend DMV on May 30th. Wynn was arrested a short time later, and indicted by a Grand Jury for Hickman's death. At the time, D.A. Steve Gunnels told KBND News there was no known connection between th two. However, surveillance footage showed Wynn with the 62-year-old victim shortly before the murder. During the investigation, Bend Police asked for help locating a blanket Wynn was seen wearing around the time of Hickman's death (pictured). It was later recovered. Both men were members of Bend's homeless community. 

Friday, the D.A.'s office announced forensic testing on the evidence gathered during the investigation did not provide conclusive evidence that Wynn is responsible for Hickman's death. 

The homicide investigation is ongoing.