I didn't miss it. You're doing a lot of presupposing what the witness knew or didn't know at the moment that knock came on his door. DM was arrested on the 11th and the reporter showed on the 12th. It is entirely possible the witness hadn't even seen/heard the developing news that day to connect his neighbor's grown son with the Bosma case. Not everyone follows the news the same way. This witness said he hadn't even seen DM in 5 years or more so why would he even assume the big trailer had anything to do with anything - other than seeming out of place (which certainly isn't a crime)? The guy spoke to the reporter and possibly had a "holy crap" moment and realized what he was looking at & phoned the police.
100% speculative of course - since I wasn't there. Just guessing of course, but I see no reason to assume he used the media for his personal gain as was implied.
moo - etc.
Yep, they were both connecting dots. The reporter may have seen the trailer, but never considered that it had just shown up. The neighbour may have been fully aware of the case (all of us that live locally were), but the woman he knew didn't go by Millard and the son hadn't been seen in years. When the reporter shows up, it clicks! Thats the same guy, then the realization that the trailer had just mysteriously shown up. Doesn't take a genius to figure out that it is probably related.