Watched that entire video. The guy is pretty good with the facts. But I will disagree with him on a couple of points. He implied that Arbury going on to the construction site "might" have been a B&E, but doesn't address
Georgia's B&E statute. Unauthorized entry onto property is not enough. There must be an intent to commit theft or a felony. That cannot be proven, as Arbury is not shown stealing anything on those videos. Nor were thefts reported from that construction site. This was trespass, a misdemeanor. Given that his legal analysis of citizen's arrest law is pretty good here, he should have gotten that right.
The second point is his certainty that this was not motivated by racism. I agree that these guys suspected him of a crime. But what they knew about was him committing a trespass a few times. Under those circumstances, grabbing shotguns, getting into the back of a pickup truck, chasing him down, getting out of the truck and brandishing the firearms was a rather extreme reaction. It's not like they didn't have other options. Why such an extreme reaction? I mean seriously, who does that when all they've seen is a simple trespass? Was their choice of how to respond to this trespass motivated by Arbery's race? Might very well be. It's difficult to explain it otherwise.
I agree this was not a premeditated murder because they just wanted to kill a black guy. I disagree that we can rule out racism as motivation for their behavior. The subtle fallacy in his reasoning is a false dilemma that either they set out to kill him solely because he was black or they aren't racist. It's nonsense.
He's right that the father might get off here if the underlying felony of assault is not proven. We'll see how that pans out.