What criminal offense is Alfred Ruff being accused of in his interrogation?

Alfred Ruff, a 69-year-old man, is being accused of attempted murder and conspiracy for allegedly trying to poison his wife, Lisa Bishop. During his interrogation, detectives confront him about understanding the criminal implications of his actions, explicitly stating "What you're doing is trying to kill your wife." Ruff acknowledges this with a simple "Yes." The case revolves around a disturbing plot allegedly orchestrated by the victim's daughter and a friend, who instructed Ruff to poison his wife, apparently motivated by a life insurance policy. This interrogation clip captures the moment when investigators ensure Ruff comprehends the severity of his actions.