sure... and striking him with your fists and elbows can do the same thing
do the same thing, but usually will NOT do the same thing. You are not likely to restrict mobility or directions of fire unless you are extremely lucky or skilled and can deliver a CNS disabling blow. Most folks cannot do that.
However, feel free to start your own thread documenting fists and elbows to stop active shooters. I would not be surprised if you find several. It would be interesting to see what examples you derive and can share with us. No doubt it will be informative.