On Oct. 28, 2007, 23-year-old Stacy Peterson, the wife of veteran police sergeant Drew Peterson, goes missing. as police launch an intensive search to find Stacy, the case raises shocking new questions about her husband.

On April 19, 1995, Timothy McVeigh, a 26-year-old U.S. army veteran, detonated a 7,000 pound truck bomb outside the Alfred Murrah Federal Building in downtown Oklahoma City, claiming the lives of 168 innocent people. We take a look back at the events that led up to the largest domestic terrorist attack in the history of the United States.