I agree it was self defense but is it legal for a 17 year old to carry an AR15 in WI
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My cursory reading of the 2nd amendment says yes.
Under the circumstances I couldn’t care less. If it was,in fact,self defense I don’t care if he used a tactile nuclear missile!
In the late 50s my Brother took his Rifle to School. He was in the Gun Club and they had a shooting range in the basement. That was in Long Island, NY. How things have changed.