I left Brooklyn to attend Brown in 1995, when New York City had yet to shake its rough-and-tumble reputation. Of all the amenities that the Ivy League campus provided—bountiful libraries, a full-service gym—the most luxurious to me was a sense of safety. I’d walk around campus at all hours of the night; just the other day, my freshman roommate and I reminisced about keeping our dorm room unlocked so our friends could come and go. Despite how much has changed in the decades since I was there, it was that sense of security that had, after what she’d endured in high school, appealed to Tretta.