It's suggested, but never confirmed, in Remember When, that Larry Boy gave the Feds the location of Willie Overall's body. Later in the episode, however, Silvio says Larry told the Feds Jackie Aprile killed Willie Overall, not Tony. Silvio adds, happily, "[Larry] covered your ass", which implies Larry knows it was actually Tony who did it.

Did Larry flip, or was he just fucking around with the Feds to amuse himself, "trolling" them in essence?