In the 1980s we were losing more than 200 children between 5 and 14 years old annually due to the accidental discharge of firearms. Then came the 1990 Gun-Free School Zone Act before the 1998 Brady Handgun Violence Prevention Act. Laws requiring trigger locks followed in 1999.
In that decade, gun-related deaths dropped to as low as 76 per year. We have averaged 46 per year since. For 5- to 9-year-old children — those similar to the ages of Sandy Hook Elementary — the averages before, during and after these spans of time were 164, 125 and 29, respectively.
I understand that this correlation with gun-control laws doesn't prove cause and effect, but how else might we account for this big improvement?