Episode 81 of "Cold Case"
s04e12 Knuckle Up
Title: Knuckle Up
Original Air Date: 01/07/2007
Plot Outline:
A video clip that shows a promising college bound young man who disappeared in 2006 involved in the underground subculture of bare-knuckle brawling is found on the Internet and Lilly reopens the case. The young man's sister, Alexa, found the video clip showing her brother, James, fighting for his life. Alexa assures Lilly that James was not the fighting type and was gearing up for college and a promising future before he vanished. Now Lilly and the team go into the cyber world to find out if, upon closer inspection, the Internet clip contains clues to her brother's whereabouts.