What a joke dude , those people will kill you for nothing and you want police to catch them and teach them humanity !!! Dude where in the world are you living ??
Few year back one cop was shot in NYC , only fault his was he went to clear dispute of a black man and his wife !!
Last year a cop was shot in leg for nothing , only fault he did was he was patrolling. You really need to read some real news paper dude.