Consider

So, do you think government officials are above criminality or that they never get caught?

https://news.yahoo.com/closed-cold-case-murder-tied-184109085.html

Cold case from 65 years ago solved with genetic geneology:

https://abcnews.go.com/Technology/wireStory/dna-forensic-genealogy-close-65-year-double-homicide-78182071