(Rochester, MN)  --  Police in Rochester are investigating the discovery of a man's body near a motel dumpster.  Officers say the victim had been staying at the Best Western since May while in town for a construction job.  The 34-year-old man's name hasn't been released.  Investigators found no evidence of physical trauma.  They say he might have died from a medical issue or a drug overdose.  Results of an autopsy are pending.