The thing is, we don't have enough information to know whether there was any burglary and I have seen no compelling evidence of this "history of burglaries" in the neighborhood, which should be fairly easy to find from local police reports. It doesn't make sense to "believe" Ahmaud was a burglar. That's something that could have been sorted out by local police. What we do know is the blue line protects its own and this guy was a former cop who already had multiple DAs recuse themselves because of conflict of interest. We also know Ahmaud Arbery is dead.
When people perceive themselves to be in danger, they react stupidly. It happens all the time. If two random dudes pull up on you and have guns on you, for most of us, it's hard to know how we'd react. We can all guess that we'd be docile and raise our hands and pray for our lives, but not everyone makes that choice. In the situation I mentioned above with the family friend, the kid tried to knock the gun out of the guy's hand and ended up getting shot. It was a tense moment and he regretted it for the rest of his life. The kid still died and even the shooter said he didn't deserve it. It was a tragedy.
I think states that have laws that incentivize vigilantism, i.e. citizens arrests, create murky situations like this, though I do believe in people's right to defend their life and livelihood. I simply don't believe an armed person in a vehicle following a suspicious person has much reason to leave that vehicle. Old head MMA and kickboxing fans know the story of Alex Gong and how he tragically died trying to fight with an armed guy who didn't even leave the vehicle. All of these situations are usually filled with too much bravado and too little rationality. You're right to say that media narratives will try to twist this into us vs. them logics because that's a hot story especially in a time when no one has much of anything else to do. You're also right to be suspicious of inflammatory stories, but I just say grant Ahmaud the same humanity as the shooters and the same benefit of the doubt.