... the flaws. A perfect example of this would be the story of Ray Krone who was arrested for the murder of a cocktail waitress in Phoenix Arizona in 1991. An inexperienced forensics expert made a mold of Krone's teeth and placed it around the victim's nipple, hoping to compare the mold with bite marks left by the killer. The mold made contact with the skin and since a corpse's skin is not resilient, the marks from the mold stayed, creating new evidence from which other experts made their judgments. A simple mistake, but it became the central piece of evidence that a jury used to convict Krone of murder and sentenced him to death. Investigators might have found the sex offender if they hadn't been directed to build a case against Krone within a few days of the crime. It's a common error when investigators focus too quickly on someone who ...

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