
This episode of Unsolved Mysteries covers the Green River Killer, the mysterious death of Captain Michael O'Meara, and the case of Leonard Derkson's disappearance.
The Green River Killer, Gary Ridgeway, was convicted of murdering 48 women, but doubts arise about whether he is the true killer. The episode discusses William J. Stevens, a former suspect who had a troubled past and a questionable alibi provided by his brother Bob Stevens. Bob now believes his brother may have been involved in the murders.
Captain Michael O'Meara was found dead in a Cook County service area, and while the coroner ruled it a suicide, his family disputes this conclusion. They argue that the circumstances surrounding his death suggest foul play, and Dr. Deo, who reviewed the case, believes O'Meara may have been murdered.
Leonard Derkson, an Oklahoma farmer, disappeared after a visit from a stranger. His son Jared recalls their close relationship and doubts his father would leave without a word. Sightings of Leonard after his disappearance raise questions about whether he walked away from his life or was harmed.
Finally, the episode details a deadly insurance scam involving Dr. Richard Bogs, who was implicated in the murder of a man he claimed was his patient. The investigation reveals a conspiracy to switch identities for a life insurance payout.
The episode covers the Green River Killer, Captain O'Meara's suspicious death, and Leonard Derkson's disappearance, alongside a deadly insurance scam.

This episode stands out for the following:
I really believe my brother is a Green River killer.Unsolved Mysteries with Dennis Farina - Season 2, Episode 15
That really got me.Unsolved Mysteries with Dennis Farina - Season 2, Episode 15
The ghost of Captain Mary had become a Matchmaker.Unsolved Mysteries with Dennis Farina - Season 2, Episode 15
This does not sound like a suicide.Unsolved Mysteries with Dennis Farina - Season 2, Episode 15
I don’t think he would have ever left me.Unsolved Mysteries with Dennis Farina - Season 2, Episode 15
If this man didn’t do the murder, he may have taken Leonard somewhere.Unsolved Mysteries with Dennis Farina - Season 2, Episode 15