A 48-year-old man is facing a second degree murder charge in connection with the death of Robert St. Denis.
OPP say Stephen Douglas Gautreau of no fixed address in Chatham was arrested on Thursday.
Police were called to a rural Westminster Drive home, southeast of London, the morning of June 25 and found the body of St. Denis.
A post mortem on the 51-year-old was completed the following day, at which point the death was deemed to be a homicide.
Gautreau is scheduled to appear in a London court on Friday.
Police say their investigation continues, and anyone with information is asked to call a tipline set up for the investigation at 1-855-677-4636 or Crime Stoppers at 1-800-222-8477.