I think that is a great question.
I find it reasonable to believe that relatives of RAW recall his visit in 2014 and considered it strange or suspicious, though it is kind of odd for someone to remember a visit from LLW nearly 40 years ago unless the circumstances were really odd also.
I would be asking suspects and relatives how often LLW and RAW visited the area over the years.
Was it a regular occurrence?
How much time would elapse between visits?
Who did or who would they visit there?
While Virginia and Maryland are right next to each other on a map, it would take 3.5, 4 HOURS EACH WAY or longer in traffic (mostly near DC) to drive from Wheaton MD to Bedford.
I never drove to Bedford, but drove a few times to Virginia Tech, which is an hour longer. The point is that it's a very long road trip, taking up most of a day if done in one day. It's not like he stopped by his aunt's house on the way home from work. I can remember each time I drove to Virginia Tech decades ago
It would also be memorable if it was unusual for Lloyd, who has no car or drivers license, to show up on his own.
Lloyd might have been acting weirder than usual if he just committed a serious crime.
In the days before cell phones, it was more common for people to drop by unannounced.