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For Karr, that was a turning point. He spent five months in jail. His wife took their three sons and began divorce proceedings. Two months later, when he failed to show up for a court appearance, a warrant was issued for his arrest. Karr spent the next five years on the run in Europe, Central America and Asia, working as a teacher wherever he could and eventually landing in Bangkok. When police moved in last week, he was living in a shabby ninth-floor hotel room. He had just started yet another job, as a second-grade teacher.
After Karr is returned to the U.S. this week, prosecutors will move to run tests to see whether his DNA matches samples found under JonBenet's fingernails and in her underwear. If they match, all the questions about his credibility will drop to the floor. If they don't, the murder of JonBenet Ramsey will go back into the unsolved-mystery file. And so will the story of John Mark Karr.
> Read the latest developments in the Ramsey case at time.com