Murder in the O.C.

Since the sudden death of his wife Kari in April 2006, Matt Baker has gone from grieving husband to a murder suspect maintaining his innocence to convicted killer. And it was his lover, Vanessa Bulls, who revealed the dark secrets that helped put him behind bars. With exclusive interviews, police videos and depositions, correspondent Erin Moriarty reports in a 48 HOURS MYSTERY "The Preacher's Wife".