Jerry (surname unknown) is the murderer of his husband Andy Corvo.
History[]
Jerry poisoned Andy with liquid nicotine, which he acquired from his job at Langden Chemical. During a run with Andy, the nicotine took effect, and Andy collapsed from what was disguised as a heart attack.
Jerry wanted to collect on the insurance, but Andy's lawyer revealed the state didn't recognize their marriage, unlike a jurisdiction such as Hawaii. When the detectives questioned him when the cause of death was found, he broke down and confessed before he was arrested.
Jerry was found guilty of first-degree murder and fraud and was imprisoned. (L&O: "Couples")