I won't disagree with that at all. But the incident is inevitably the cause of the "crooked politicians" pushing firearm restrictions at the Federal level.
Nope, they were on this mission right after the Civil War trying to prevent African Americans from owning guns and it's the real reason the Freed Men's Bureau Act and the 14th Amendment to the Constitution were written.
Long before "Mass Shootings"(which haven't killed 300 people in 30+ years) and long before Gang Violence they were pushing the same laws any time there was an excuse.
It's always been based on hype and sensationalism, not facts.
The US murder rate is at it's lowest point since 1913 and there were 100 million Gun Owners in the USA as of 2007. In fact being shot by someone other than yourself isn't even in the CDC top 20 causes of death.
Gun Control's motives have nothing to do with the incidents they claim to be tied to because they find a new one whenever their last excuse dries up(like Cowboy Train Robbers, 30s Mobsters).
There's a dedicated class of people who don't like the plebes owning guns, property or even books that are critical of their agenda and that's just a fact.
I always feel sorry for guys like the OP who merely want to practice a basic Civil Liberty but a bunch of lies and hype make them walk through a minefield of constitutionally illegal laws trying to stay out of trouble.
It's the same thing we face when our old Jeeps can't pass emissions or when a public use 4x4 trail we've used for 3 generations is closed.
We pay taxes and we have rights but only to the extent that they will allow when they feel like it.
Fascism Sucks and Colorado is drowning in it.