He was in the area when it happened, and did get detained. I bet he got detained over THAT. The second video set got released while he was detained, however, that would be easy to have done without him actually there to do it.
This is only a rumor, but I'd say it is plausible.
Rumor has it he got a new drone and was in the area. If you watch the videos, the first ones were done with an abundance of caution, with the drone staying well away from all obstacles. But the last video it went right up to the window, very carefully, and got a good look inside. That's where the bloody bed pic came from.Why the difference in how the drone was flown? Easy answer: Because by the time the last video was made, the drone operator had a little practice and could bump it up a notch.
There's no one saying it was McCaffee that did it, and no news reports, but it does fit - him getting a drone and being in the area and then getting arrested in the time frame it happened.