Dr. Elizabeth “Beth” Allison is a pediatric oncologist and the killer of con artist Gideon Blake. She killed Blake with rat poison so he’d die at a restaurant they were supposed to meet at.
Dr. Allison was tried under the motive that he robbed her with a real estate scam. Instead, she killed him because of his latest con as a spiritual medium, a con Dr. Allison believed and was devastated to find was wrong. She argued the grief of her job coupled with the pain of the revelation drove her over the edge, and on the stand, she had a psychotic breakdown when she wept that Blake was with the children in Heaven.
The prosecution was sympathetic and agreed for Dr. Allison to be institutionalized. (L&O: “Compassion”)