I think the problem here was that these kids are the children of local cops, who willingly turned a blind eye.
Just ONE adult with a shiny chrome .45, 1911 frame or shotgun would have stopped all of this in its tracks.
EDIT to add: "An armed society is a polite society. Manners are good when one may have to back up his acts with his life." -- Robert A. Heinlein
From the article: "An older man in his late 60′s was driving along Gerritsen Avenue when his car was hit by eggs, when he exited the vehicle he was pelted by dozens of eggs, rocks were thrown, chucks of brick, and someone tossed a hammer."
And how's that been working out lately for you Americans?
Much like the repeal of the national 55mph speed limit, the arguments against were all FUD. Neither resulted in bloodbaths.
[1] A law which requires the state to issue a permit to carry a concealed weapon, except under specific disqualifying circumstances, which the state bears the onus showing.
When one attacks another's person and property, one should expect retribution.