You specifically asked why he was carrying extra magazines.
I told you, it’s a normal thing to do.
Clearly you did not know that, which very much calls into question your implicit claim that you go about armed. You just don’t know the basics.
Try to keep up.
Some people carry what they are comfortable with or the situation warrents...
Some may only need a 7rnd subcompact... other times they get a full sized 15-20 rnd, with possibly extra mags.
If they get concerned, it may be a mp5k in a sling bag...
But in this case, pretti clearly carried a gun and was actively involved in protesting, showing intent to use it against ice officers... because he wasn’t going to be using it on fellow agitators, was he?