Don't know if people have been keeping up, but it looks like the Lyon sisters case has been solved. Lloyd Welch has been indicted in the deaths of the two girls who disappeared 40 years ago. Their remains have yet to be discovered.
This gives hope that other cold cases from this time can still be solved.
There have been a few lately.
Here in Aus we've recently had a case solved fom the 70s-80's (well it certainly looks that way) involving the bombing of the Family Court and 4 murders. They always had a prime suspect and a tiny drop of degraded blood (that in reality could it seems only have been left by the killer) but not enoug to get DNA from, as technology progressed they eventually got the DNA and made an arrest.
G U T
There are two ways to be fooled, one is to believe what isn't true, the other is to refuse to believe that which is true.