Here’s something from this NBC article that backs this up: https://www.nbcnews.com/news/us-news/black-man-shot-dead-while-jogging-southeast-georgia-two-months-n1196621

The case was briefly in the hands of DA George Barnhill, based in Waycross, but he recused himself because his son works for prosecutors in Brunswick.

But in a memo from Barnhill to police, the DA said he believes Gregory and Travis McMichael should not be indicted. He said the father and son had "probable cause" to believe the victim might be a burglar and were within their rights to arm themselves and chase him down. The prosecutor said video footage of the shooting, made by a neighbor, shows Arbery to be the aggressor.

"Given the fact Arbery initiated the fight, at the point Arbery grabbed the shotgun, under Georgia Law, McMichael was allowed to use deadly force to protect himself," according to the memo, reported in the New York Times.