My theory is he wrote the letter in 1979 and just forgot to mail it. I think your article doesn't see the whole picture. First of all, any gun can kill if you don't handle it correctly, and every gun is as dangerous as the user wants it to be. In these accidental shooting cases, the user is the one who is guilty, not the gun. Also, for police officers, having maximum capacity is important.
Criminals can get any kind of weapon.
But if you start limiting the magazine capacity of police officers, it's more hazardous to the public and for the security of the individual. Perhaps you should be inquiring why all of these people are running around with their fingers on the trigger and not receiving adequate training. It clearly illustrates humankind's continuing denial of its connection to nature and the struggle for those of us that understand how connected we actually are to the earth. This flag was the symbol of groups that lynched many innocent African Americans. There is no way that this flag should fly above a state house now.