Unlikely clue helps bring young mom's killer to justice

More than a year after Mengqi Ji's disappearance, a hiker stumbled upon her skeletal remains in a Missouri park. How DNA from a juniper tree and a pair of muddy boots were crucial to solving her murder.

source https://www.cbsnews.com/news/mengqi-ji-murder-joseph-elledge-missouri-tree-dna-48-hours/