"48 Hours" preview: "A Sister's Fight for Her Brother"
Scott and Janet Pettit were killed in their Modesto, California, home in 2013. Their son, Brandon Pettit, is accused of hiring a friend to kill them. But his sister, Lauren Pettit, has stood by her brother from the beginning and insists he's innocent. "48 Hours" correspondent Erin Moriarty joins CBSN AM with a preview of Friday's report.
(Editor's note: On October 19, 2022, Brandon Pettit's conviction was overturned after an appeals court found that his statements to police should not have been admitted at his trial. Prosecutors say they plan to retry the case.)