Man's Dismembered Remains Identified After Investigators Find Chainsaw In His Stolen Jeep Investigators believe that Christopher Collin Demmon killed and dismembered Justin Yeng Xiong and then stole his jeep. The vehicle was later found with a bloody chainsaw inside of it. Christopher Collin Demmon Photo: Hancock County Sheriff’s Office A set of dismembered remains found at a property in Georgia have been identified, following the suspected killer's arrest in South Carolina. Christopher Collin Demmon, 33, was charged with malice murder on Saturday. The victim has now been identified as Justin Yeng Xiong, 29, of Eatonton, Georgia, a press release from the Georgia Bureau of Investigation stated.