Some guy from IIRC Texas got arrested in connection with some letter bomb terrorist stuff. IIRC the only connection was the fingerprint. His lawyers basically assumed he did it until some other law enforcement agency finger printed some guy in North Aftrica who fit all the other evidence (i.e. he was known to them as the kind of guy who would be involved in that stuff) and his prints matched as well. I saw it mentioned as a small anecdote in a paper/article/blog about the "rigor" of the forensic "sciences".

Google couldn't help me find the original source.