Reviewing the photos of the 7600 N Greenview building (which is the Greenview side of JBs laundromat which just had to replace three of its windows from rounds fired) we see that in case you need help you can buzz for assistance.
Dial 225 for Police, Fire and Sheriff and after 7 pm dial 226. A great way to ask for help if your phone gets stolen. This corner of Rogers Park is currently plagued with gang loitering and drive by shootings. It is also outfitted with at least five different signs stating that no loitering is allowed.