Seems only appropriate the arrest was made because of the Internet!

http://www.cnn.com/2006/LAW/08/16/ramsey.arrest/index.html

A suspect has been arrested for the 1996 Colorado murder of "child beauty queen" JonBenet Ramsey, after online communication led authorities to his whereabouts in Thailand. Snip from CNN report:

A law enforcement source identified the suspect as 41-year-old John Mark Karr, a one-time schoolteacher and American citizen who has lived in Conyers, Georgia. Karr has confessed to some elements of the crime, law enforcement sources told CNN. The sources added that Karr had been communicating with someone in Boulder and that online investigation played a key role in leading authorities to the suspect.