BBM:
This happened after SM was reported missing.
LE was already asking questions at that point.
I think BM was nervous that heading off to any remote area would look incredibly suspicious.
Best guess is that something either occurred to him late or he noticed it after the fact and got worried that it might incriminate him, so he stopped at a public trash receptacle to dump it.
I'd be interested to know whether this trash bin was in front of the store or at the side/rear of the store, and the size of it, i.e., whether it was just a regular trash can or a dumpster.
Also, would like to know time of day BM was at this store.
I'm wondering whether this occurred in the early morning before daylight or at night/after dark.
Also, the DM article stated that BM was banging on the glass window to get the manager's attention, so I'm thinking the store was closed at the time.
If that's the case, it REALLY begs the question as to what BM was doing there in the first place.
My main man William of Occam says he was tossing something into the trash surreptitiously.
Not attempting to retrieve something from it.
I'm with my main man Will on this one.
JMO.