The story

Investigators have found chemical evidence of human decomposition in the trunk of the car connected to Florida mother Casey Anthony, a law enforcement source said Wednesday.

The evidence, discovered at the the University of Tennessee Forensic Anthropology Facility, may help solve the months-long mystery of the woman's missing 3-year-old daughter, Caylee.

The little girl's disappearance has garnered national headlines and has been the nightly fodder of cable TV crime shows. Read full article »

CNN's Christy Lenz contributed to this report.

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