On the wall of the men’s bathroom in the Wickenden Pub in Providence, Rhode Island, three names have been scrawled in blue pen, each one crossed out. “Arthur Knight”, “Nick Rossi”, “Nick A”. Below them, a fourth name is left uncrossed: “Three Question Nick”. Those names may just be the drunken scribbles of a punter in the wood-panelled dive bar, but anyone who frequented the Wickenden between 2015 and 2017 will have heard of the final one.