So, as a person who enjoys shooting and guns, I'm going to point out a few things about this kid in Wisconsin that are basically going to wreck him in court and nullify any self defense argument he has.
/1

Just remember I like guns, I think they are super awesome and everyone should at bare minimum know how to use one. So let's move on to the Play Stupid Games, Win Stupid Prizes section of this post.
/2

1. He was 17. It was illegal for him to posses that rifle. In his home state you have to be 21, in wisconsin you have to be 18.
This was crime 1.
2. Crossing the state line with an illegally possessed weapon is a pretty big deal and a big fat number 2 on the crime list.
/3

3. Wisconsin totally allows for the use of deadly force in self defense, but the caveat is that you cant be committing a crime while that use of force happens. Which we addressed above he was actively committing a crime by possessing that rifle.
/4

4. Wisconsin has a Castle Doctrine. But you can only use deadly force if the perpetrators are in your dwelling or your place of business. For a place of business you have to own this, or be in charge of operations of the business.
/5

You can not just post up to protect a random business, also you can not chase people if they decide to retreat like This 17yo did. Wisconsin V. Charles L Chew is the case law. If you want to have a look.
/6

5. Its not self defense when you get in your car with a rifle, drive 15mi to another town, and walk the streets with a rifle.
/7

He had every option to stay home but he chose to get involved in this situation with the plan to be involved in confrontation(hence the rifle) also in Wisconsin self defense law you cant be the instigator and then claim self defense.
/8

He became the instigator the second he pursued.
I get it. The kid thought he was gonna be a hero and help out. But, reality is, he made a large number of bad mistakes because he's 17 and has his face buried in what essentially amounts to propaganda everyday.
/9

Now 2 people are dead and he's headed to jail.
This is what all those Trump "shoot the protestors" comments create.