South Korean actor Lee Sun-kyuna member of the cast of the Oscar-winning film ‘Parasites’, was found dead this Wednesday, while he was being investigated for a case of alleged drug usethe Yonhap news agency reported.

Lee, 48, was found unconscious inside a car parked in a park in central Seoul at 10:30 a.m. local time this Wednesday (1:30 GMT), the aforementioned media reported. A charcoal briquette was found in the passenger seat and the police were informed that Lee had left in his home an apparent suicide noteso they believe he took his own life.

Lee was being investigated on suspicion of having used marijuana and other drugs illegal in South Korea at the residence of a hostess who works at an upscale bar in the Gangnam district on several occasions since the beginning of the year.

The actor hadsubjected to three interrogations, the most recent last weekend, in which he was questioned for 19 hours, and had told investigators that said lady had tricked him into consuming the substances, without him knowing what she was taking. Lee had tested negative for drugs in the reagent test he underwent during the investigation, as well as in a laboratory test conducted by the National Forensic Service in November.

The interpreter had submitted a request yesterday to the police department leading the investigation to undergo a polygraph test, claiming his innocence. Lee filed a lawsuit in October against two people, including the aforementioned hostess, for blackmailing him after news of her alleged drug use surfaced. The woman was detained last month and police are believed to have requested an arrest warrant for the other person, according to Yonhap.