David Del Rio 's wife, Katherine , is sticking up for her husband amid allegations he sexually assaulted his "Matlock" costar Leah Lewis ... calling Lewis "the most disturbing human being I have ever met." Katherine posted the fiery message on an Instagram Story Thursday, showing a cropped photo of Leah from a pic of the 28-year-old actress with her mom. Katherine's post has since been deleted. As we reported yesterday, David was escorted off the Paramount lot last week and kicked off the show

Tag-uri: Instagram