Mystery on County Road M

On this week's "48 Hours," Todd Kendhammer says his wife was killed in an accident -- a pipe flew off a truck and crashed into their car. Authorities say the scene was staged. "48 Hours" correspondent Erin Moriarty reports. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.