By Sharyl Attkisson
The prime suspect in the botched gun trafficking investigation known as "Fast and Furious" -- Manuel Acosta -- was taken into custody and might have been stopped from trafficking weapons to Mexico's killer drug cartel early on. But the Bureau of Alcohol, Tobacco and Firearms (ATF) let him go, according to new documents obtained by CBS News.
An ATF "Report of Investigation" obtained by CBS News shows Border Patrol agents stopped Acosta's truck on May 29, 2010. Inspectors said they found illegal materials including an "AK type, high capacity drum magazine loaded with 74 rounds of 7.62 ammunition underneath the spare tire." They also noted ledgers including a "list of firearms such as an AR15 short and a Bushmaster" and a "reference about money given to 'killer....'"