I’m a Sarah Lawrence grad (graduated in 2012). The dorms in which this took place were never patrolled or regulated. I knew several people who had their boyfriends/girlfriends (who didn’t attend SLC) live with them throughout the year. They would go to the dining hall, walk around campus, and no one would do a thing. We had campus security but honestly they were so checked out and didn’t really seem to do much patrolling. In general things were very lax on that campus. Too lax, obviously. It’s also an open campus so that makes it easier for strangers to come to the campus unchecked.

These particular dorms were also equipped with full kitchens and bathrooms (they were built in a single family home type of way) so that could be why this dude was able to get away with what he did for so long - there wasn’t really a reason for him to leave the dorm to begin with, especially if he could convince others to go out and bring back necessities. Hope that helps to clear up how this happened. The school is to blame for its negligence and I hope they will face due punishment. A lot of crazy (deeply unpleasant) things happened on that campus precisely because no one ever cared to make sure students were safe.