He was walking. The video shows him clearly not running, and arguably not dressed for running. He walks past the house to where the driveway is, turns, ponders a little then walks into it.
He's certainly not casing the joint as there is no joint yet to case.
My guess is that he was looking for construction tools.
I have often gone up to construction sites to look at the floor plans and see what kinds of materials are being used, etc. But I'm white, so evidently I can do that without being killed or suspected of trying to steal tools.
The other part is that he storms out of the home, likely after he noticed someone was looking at him and on a phone. This implies what he mindset was.
Regardless, that footage in no way shows anyone clearly enough for any kind of positive ID, let alone barely plausible ID, let alone plausible enough ID that it justifies armed pursuit and three shotgun blasts.
It does fit the timeline tightly. It does NOT provide a single shred of evidence he committed a felony. And it certainly doesn't demonstrate his death was in any imaginable way justified.
But, after looking at the video, I have significant doubts that he was jogging. This matters to me because it presents a cause of a person being out, independent of anything, being confronted by armed idiots and then dying. This story doesn't seem that simple from this additional video. Though I'd love to find out why this video was leaked in the first place, as it seems to have been done at the shooter's benefit.
So once again, black person shot and killed needlessly in a confrontation started by others... and the investigators are making the case for the defense.