NFS Carbon: Own the City

After spending the entire game chasing down the racer responsible for the crash that killed your brother Mick, Sara reveals that the true culprit behind Mick's death was actually you, although the crash also caused you to not remember the truth behind it all. However, she also reveals that Mick was so despised by everyone in the city, besides you and Sara, that it is implied that they were also let in on the truth and allowed you to get away with murder.

Example of:
Twist Ending