What would help to greatly reduce gun crime in America is a simple regime of mandatory, federally administered and supervised, IQ testing. If you (a man or woman over 18 y.o) score below 85 points, then it's: "Sorry Buddy, but your 2nd Amendment Right to possess and bear firearms just disappeared down the gurgler. You ain't gettin' no gun/s."
It's not a panacea, but at least my proposal would - at the very least - save 1000s of lives in America each year.
Dachshund - the WONDER HOUND
DLM....Dachshund Lives Matter !!