AN INEVITABLE QUESTION: HOW MANY ILLICIT YOUTH GANGS DO WE HAVE IN OUR NORTHEASTERN SECTION OF THIS STATE-CAPITAL CITY FOR TEXAS?

I was reminded of the need for an answer to this question after I read the following factual information tonight in regard to the alleged perpetrators of graffiti (an alleged criminal activity involving alleged vandalism or criminal mischief) on public properties: "Graffiti is also used to mark which gang controls or rules a certain territory. The graffiti that marks the boundaries of that area are guarded by the gang members themselves and trouble happens (exact quote) when any of them (any of the graffiti messages) are defaced or tampered with...." The online source for this statement: https://whydopeople.net/why-do-people-graffiti/