i'm not throwing you against the -- >> you think i'm an escapee? >> hey, you wouldn't believe what the guys do. i mean, they've got years and years to think about how they're going to do it. >> after a few minutes of discussing his jogging route, the officer lets the wanted man go with a wave and a smile. >> be careful, buddy. >> thank you. >> all right. >> mcnair killed a man during a robbery in 1987. he's listed by federal marshals as one of the country's most-wanted criminals and eludes a nationwide manhunt for nearly two years. he's captured in canada in 2007 and is extradited back to the united states. coming up -- >> get in the car! >> outgunned on the side of the road. police getting in trouble. >> sit down! i'm not a dude. >> and an airport nightmare. when "caught on camera, the thin blue line" continues. [ grunting ]