On April 30, 1986, 33-year-old Michael Koseniensky was shot after answering a knock at his front door at his SE 80th Avenue home in Portland. His wife, who was at the house, heard the shots and found him on the floor; he was taken to hospital and died on June 20, 1986, after weeks in critical condition. Koseniensky was married and had no children; he worked as a mechanic and car salesman.

The Portland Police Bureau’s Cold Case Homicide Unit lists the killing as unsolved. Authorities have suggested Koseniensky may have been involved in the sale of drugs at the time, a detail investigators say could relate to a possible motive. No arrests or public identifications of suspects have been announced.

Does anyone with knowledge of Koseniensky, his neighborhood in 1986, or his contacts at the time have information that could help the investigation?