9.2 Gun control?

I just don't get the logic here. Crimes are being done using illegal firearms, so how does restricting access to legal firearms helps? 

Logic? 

In my opinion it's not about gun control, but it's about learning the value of life which should be protected at all costs. 

// stay safe

PS.
If you agree with me:
https://www.change.org/p/council-of-the-european-union-eu-you-cannot-stop-terrorism-by-restricting-legal-gun-ownership