[moisto]

I remember hearing about some dude in his 80's , arrested out of the blue, for a murder he committed ~30 years ago.

The police used the crime scene's partial DNA and compared it to somebody's 23andMe sample.

Thanks a lot, grandson!

[dewey]

That's probably the story you are referring to: https://www.sciencemag.org/news/2018/10/we-will-find-you-dna...

[moisto]

Oh, wow yep that's the one. Thanks for source!