This is an unfortunate situation and there are/will be no winners here.
Unfortunately it is next to impossible to find any real facts, at least ones that can be confirmed. Take the statements that the two killed and the one injured all had criminal histories.
On the one hand I have seen video of the first guy shot and killed confronting folks a few hours prior to the shooting screaming for them to shoot him. Looks like him. He is using tactics that have been taught by Antifa and recently by BLM where the perp moves quickly towards someone, moves/raises hands in a threatening manner only to stop just inches away from them. This is intended to elicit a protective response from the person in order to justify attacking them. It is also stated that this guy is a convicted sex offender and was not to have contact with minors. He was also supposed to have anger management issues. But others have stated that all of this is made up.
The Skateboard guy has been touted as a hero for 'saving lives' by MSM but never really states how he 'saved lives'. They never state that he chased the shooter and hit him in the head with the skateboard. I have seen statements that he is a convicted felon (two counts of domestic battery) which he pleaded guilty to for a dropping of many other charges. But then I have seen statements that this is made up, including the graphics of the charges from the state website.
The guy that was only wounded is clearly holding a handgun in the videos and still photos but is also wearing a 'medic' badge. Contradictory? I have seen statements that he is a convicted felon and therefore should not have been in possession of a firearm. Then others say this is made up.
Of course the shooter could not have known of any of these possible criminal histories, but if they are true, it paints a picture of who the rioters are and what their personalities might be in this special situation.
The shooter is only 17. Never should have been there, especially armed. But he was. So being there and being confronted by violence, he tried to run. He was pursued by the angry guy. Ultimately he shot that man. He then ran away while being chased but stumbled to the ground where the skateboard was used to hit him in the head. He shot that guy. Next the 'medic' comes up and points a handgun at him and he shoots that guy in the arm. He then leaves. He went home. He should have surrendered to the police at that point.
It is one thing to stand your ground at your own home/business and protect it from being burned to the ground like so many buildings these last months. I can support that. But a minor should never have been there armed. Going on video saying you are part of a militia that is there to protect businesses is only going to hurt his story.
How could this been avoided? The shooter should not have been there. But he was. The angry guy should not have attacked him. Who attacks a guy that is in position of an AR? Someone that thinks that person will not shoot. And at first he was correct. He had to chase him past several rows of parked cars in the lot before he was shot. Now for the other two guys, why did they chase him? The statement that they were trying to 'stop him or protect others' does not hold water. If you have taken CHL or LTC classes, you will know that you cannot pursue someone and use deadly force on them if they are running away. The threat they posed to you is no longer present. You have now become the aggressor. He was within his rights to use deadly force to both of those guys in the street that chased him, hit him, and pointed a gun at him. They had no right to chase him. They are not the police.
But right or wrong, the shooter is in for a shit storm that he could never possibly imagine. legal bills out the wazoo. Media coverage that will be 100% biased against him. Social Network calls for his and his family's death will be there. His address will be online with folks encouraged to make life impossible for his family.