Parabon Nanolabs and similar groups use genealogy websites to find distant relatives to crime scene collected DNA. Then they work backwards in to find potential

Parabon Nanolabs and similar groups use genealogy websites to find distant relatives to crime scene collected DNA. Then they work backwards in to find potential suspects using family trees. This is how they caught the Golden State Killer. Maybe someone had a family member get murdered in a certain area, and now they are paying a private group to collect as many samples as they can to submit to the website. This would allow the killer of their family member to potentially be found. This doesn’t sound completely absurd to me.