1W Laser for Self Defense in an Active Shooter Situation

Hey all,

Coming here look for an opinion from the experts. Lately there have been numerous terrorist attacks all over the country, with many of them being people who take firearms into public places and go on shooting sprees. I see in videos of these attacks that nobody has any means of defending themselves and subduing the shooter, so they either run or get shot down.

I live in the US, but not in a state or city where I can legally carry a firearm on me, so I got to thinking...what would be legal to carry, yet extremely effective in subduing someone who started open firing at me and everyone nearby?

I keep coming back to my 1W blue laser. I feel like if I got to cover and was within a hundred feet or so of the shooter, than I'd be able to hit them in the face with it and (hopefully) stop them, at least long enough for more people to get away.

Is there any validity to this thinking? Would 1W of blue directly to the face/eyes from about 100-200ft be enough to stop someone like this? Very curious to hear your guys' feedback.

I want to clarify that I would never use my laser to harm anyone unless it was a life or death situation.

Thanks!