They essentially have the following choices:
1) Do nothing
2) Appeal to their city appointed (Police Chief) and elected officials to do their jobs and enforce laws equally and take back the neighborhood streets
3) Bring a recall action to the elected officials
3) Take action into their own hands and raise their own neighborhood militia - vigilantism
4) Move
—okay—
Burn the building squarely in the middle, turn off the water, and have a Winnie roast.