Raynella Leath’s defense attorneys Josh Hedrick and Rebecca LeGrand paint David Leath as a man in decline, introducing medical records and anecdotal evidence to provide a motive for his alleged suicide. They attempt to chip away at the prosecution’s arguments, using the same evidence to construct a different story of what happened the night David Leath died. The defense also brings its own medical expert, who introduces a key idea: the difference between the concepts of being innocent and not guilty. Join 48 Hours’ correspondent Erin Moriarty as she revisits the murder investigation of Raynella Leath. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.