I am looking to see some finger pointing and deflection from LLW at his trial, possibly using the uncle RAW as the scapegoat if the case against LLW is strong.
I don't think any case this old has been "strong," but I have to admit, for being an idiot, Lloyd did somehow come up with a viable scapegoat, the other person of interest.
Part of it may be luck, since 40 years later, the police can't confirm the uncle's 1975 alibi and go back to Lloyd saying, it's not him, so it must be you.
I sort of doubt it, and am even don't want to mention his name to avoid slandering him, but if by chance, Lloyd is innocent, and the police said (truthfully or untruthfully) we found DNA at your residence, Lloyd would likely suggest the other person who had connections to Wheaton as a prime suspect.
If the uncle was also up to no good, such being a bad security guard (the one six woman came forward about, but we still don't know his description), there may be reasonable doublt about Lloyd.