Derrick McReary's Grave is a myth is Grand Theft Auto IV.
Post the mission Blood Brothers, Derrick McReary (depending on the choice of player) gets laid to rest in Dukes Cemetery. The center of interest about this particular grave is that the gravestone is non-solid. Anyone wanting to walk through it or through something at it, will get through it without any harm done. This has escalated the concept of the McReary's ghost in this cemetery and the cemetery has become a hot spot for myth hunting in the region, along with the established paranormal and haunting reputation of the cemetery in the myth hunting community. The occurrence itself is a glitch.