Devin Weston's Ghost is a possible myth in Grand Theft Auto V.
Description
If the player picks The Third Way for the final mission, Michael and Franklin and Trevor team up to take out all of their enemies, one of them being Devon Weston, who they send over a cliff in a trunk of a car.
If the player goes to the place where Devin was thrown off, at 3:00 AM, Devin will appear, and toss the player in the air. The player will fall over the cliff then explode, just as Devin had.
The only known evidence of this is https://www.youtube.com/watch?v=B9mdSDJDBV8%7Chere at 3:50.