Oh boo hoo; that’s so sad; or maybe its not so sad, IF they admit (1) its not any gun that’s guilty but the person behind it and their ill intent with it, and (2) the criminals can always get guns; gun control does not stop them, because there is always the people and the means by which the criminal can and will get around any gun control.
In Pakistan’s tribal areas, you’ve long had people MAKING guns, like the AK-47, using tools any Frenchman could buy.
https://www.youtube.com/watch?v=fRte65F_KRk
How will you stop jihadis from MAKING guns?