Prove it with evidence not your opinion. The evidence isn't on their side.
Intention matters. Motives matters. As of now with the evidence I believe they truly thought a crime had been committed. But the evidence played against them. I dont believe a death sentence is necessary but definitely time behind bars. They still killed a innocent man.
The evidence shows Arbery physically attacking the men, trying to take the gun from one of them, and losing his life. That is no opinion, that is what the video shows. The new videos even show him not jogging down the street like was lied about, but rather coming out of a house under construction.
Motive and intention aren't really that weighty in this case because it is a case of self defense. You can speculate that maybe Arbery's motive for physically assaulting the men is because he was perhaps up to criminal activity, but it's still a moot point because the simple truth is he physically assaulted them regardless of his motive and they had to defend themselves.