Citizen arrest is legal. The judge made a narrow decision on the law that did not follow the intent of the law or case law which prevented any real defense. The detainment turned ugly because Arbery turned violent. I don't think anyone would appreciate being detained but it's not wise to attack an armed man. Arbery was a felon while on felony bail with a history of theft and mental instability. Arbery had been previously been prowling at night at the same site and other properties and the police had to get involved in the past. The optics are bad but it's amazing that much of the public would side with one felon instead of three assumed responsible citizens, one with law enforcement background concerned with a crime wave in their neighborhood. So next time something bad happens in ones hood and the police are unavailable just hide under ones blanket. This is how civil society dies.The first and largest mistake was that ol pops and his son are NOT cops and shouldn't have played cops. They made the mistake of trying to chase the guy down and hold him at gun point and that isn't a great start to claiming self defense. If I remember right ol pops had been a cop but wasn't anymore he should have known better. I don't give a rip even if the guy was prowling the construction site it still doesn't justify what they did. Even if he hadnt grabbed the gun and been shot the three numbnuts would still be up on charges for illegal detainment, kidnapping, assault, criminal mischief, brandishing, etc. ect. Play stupid games win stupid prizes.......