Confused malcontents swilling Chardonnay while awaiting the Zombie Apocalypse.
Work provides the discipline but once you can no longer work, you have to go back to self-discipline.
As usual you are correct , I appear to have very little imagination and 40+ years in the Army gave me the discipline you speak about ,now that is over I need to work to give me challenges the other challenges were why I was sitting here and not there , why I was sitting when I should be standing and why I had not done this and done that (WIFE) and that would end up with one or both of us behind bars
I guess it's possible that they've IDed the perp, but he's dead and the evidence wouldn't convict in a law court.
To go back to the 60s/70s and convict, you really need DNA evidence or a confession.
Police in the UK do retain evidence in unsolved cases, for ever.
The oldest case solved by DNA was a 1956 murder case in Montana. Unfortunately the man IDed had died, but the family voluntarily took DNA tests which proved their father was the killer.