Broken Promises

Season 1, Episode 21 -  Air Date: 7/2/2010
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Anonymous letters sent through the United States mail aren‘t always untraceable. One such letter, an anonymous ‘tip‘ to police about a murder, mentioned information about the crime that had been withheld from the press. It was information only the killer would know. Laser technology helped to identify the state, city, street address and even the office number from where the anonymous letter was mailed. This narrowed the list of suspects significantly. Watch Forensic Files to get the answer.

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