Marc Levy When I moved to Central Square in 1999, life got exciting. I had my own apartment for the first time and was exploring a new neighborhood on my own. I was a few years out of college and at an age when hanging out in a coffee shop at night sti …

Police patrol Inman Square on Oct. 30, 2005, as reports of drug use flare in Cambridge. (Photo: Ken S. Kotch) Heroin is here, and it’s cheap. The people of Inman Square say they can see it every day, in the form of needles left in bathrooms, open-air d …