The fact that Carroll's splooge stains have never been matched is nothing new. There are thousands of rape kits in evidence lockers that have never been processed. The DNA labs can find almost anyone, through looking at their relative's sequences. I find it hard to believe that none of his relatives have ever been sequenced. Of course they just might find that his model wives' kids are not his! That's happening more than you think, now.

Educating anyone benefits everyone.