We had this problem before

Different street, different dog, but same problem and I can’t for the life of me remember how it was resolved.
This week a pit bull bolted out of a residence and attacked another dog on the street, as reported on the TruxtonCircle.org discussion board. I remember years ago (gawd I’m getting old) on another street nearby the same thing. A pit bull attacked Jolly, a very slow doting old beagle. The pit bull had attacked other dogs and there was much online chatter of what was to be done. The problem went away, but I can’t remember the process of resolving the problem. Anyone on R Street remember