I never said a word about a law regarding behavior.
If someone you suspect of a crime suddenly comes at you, physically attacks you and attempts to physically disarm you, I would guess the person with the gun felt directly threatened by that. Is that not a reasonable assumption?
The fact that they initiated the contact which was illegal at that point in time because they were not sworn law enforcement Officers and had no authority to use deadly force or the threat of deadly force negates any claim of self defense they had. Regardless of what ensued./p>