The family agreed to help the police figure it out.
Maybe their reaction to learning the news was more like "yeah this makes sense - dad was an abusive asshole my whole life. At least I wasn't killed".
Maybe their reaction to learning the news was more like "yeah this makes sense - dad was an abusive asshole my whole life. At least I wasn't killed".
That's known as a devil's bargain.
> Maybe their reaction to learning
A more likely outcome is irreparable trauma.
No. A couple of children, grand children, or cousins agreed to share their DNA (or it was legally removed without consent). The rest could have told the cops "NO", and they still would have gotten enough DNA evidence.