LEONARDTOWN, Md. (WUSA9) -- St. Mary's County officials are investigating the death of a 34-year-old male Tuesday morning.
Officials say the man was found dead in a Leonardtown, Md. residence, and it's believed that he had consumed a controlled substance prior to his death.
The deceased subject was a witness to a fatal overdose on Monday night, officials say.
The decedent was transported to the Baltimore Medical Examiner's Office and the cause of death is pending.