A Washington man was sentenced to 50 years to life after a piece of gum linked him to two cold case murders dating back to the 1980s in Everett.
https://www.foxnews.com/us/cold-case-killer-chewed-cops-undercover-dna-bait-faces-survivor-families-courtroom-showdown
https://www.foxnews.com/us/cold-case-killer-chewed-cops-undercover-dna-bait-faces-survivor-families-courtroom-showdown