All due to wholesale firearms proliferation- wherein even the most sensible regulation is opposed by the cowardly, the bigotted and those of otherwise poor character.

It is always curious to see how these sorts ^ bring up Chicago- while attempting to justify their own recurring behavior. That's the sort of thing my kids learned to knock off by about age 7-8. 

It took a little longer for them to recognise the nature of their own responsibility as members of our society- personal responsibility for promoting or acquiescing in dysfunctional, damaging or sociopathic behavior, but as they grew into adults, they learned those lessons too.

Sadly, others have not- not will they ever. Instead, unlike responsible hunters and sportsmen, they will keep all manner of guns around their house -endangering (and too often shooting -or contributing to the shooting) of their own family.