"An empty soundbite argument. How many criminals are stopped by little old ladies with weapons? In fact, how many gun shooting sprees are ever stopped by an armed bystander?"
Not nearly enough if you ask me. If a gun owner prevents something bad from happening you never hear about, because nothing happened! Stopping an armed gunman is a MUCH smaller news story than a gunman going on a shooting spree. How many crimes are prevented that we never hear about?
The problem is not with law abiding peaceful gun owners. It is with lawless violent individuals. The flaw with passing a law to solve this problem is that you overwhelmingly limit the law abiding persons rights while doing nothing to stop the law breaking. They are already law breakers and passing more laws won't stop them.
Would licensing laws have done anything to prevent this sad situation in Walmart?