An autopsy will be conducted tomorrow on the 23 year old man found dead Saturday morning at the 2400 block of Edgemont Street on Rockford's northwest side. Rockford Police Lieutenant Marc Welsh says the man's body was discovered in an alley shortly after 8 a.m. Saturday. Winnebago County Coroner Sue Fiduccia says there were no signs of trauma to the man's head or body. Fiduccia says authorities are looking into the possibility that the man died from a drug overdose. Fiduccia says the man's name will be released this afternoon.