Video shows stabbing suspect at Walmart

Published On: Feb 13 2013 06:51:36 PM EST   Updated On: Feb 13 2013 06:54:08 PM EST
Walmart surveillance

Surveillance video shows a convicted sex offender leaving the parking lot of a Walmart in Grapevine, Texas, moments after investigators say he stabbed a Miami-Dade police officer with a broken pair of eyeglasses.