Buckley Report: To Catch a Killer

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If you've ever watched Fox's popular show  "The Following"--you've seen the fictionalized version of how a detective works to catch a killer.

In real life, the challenges are even greater.

Imagine how hard it is, if the case and all the evidence, is more than two decades old.

Bob Buckley reports on the struggles of the thin, blue line between justice and getting away with murder.