The Crow (1994)

Continuity mistake: In the scene where Eric kidnaps T-Bird and forces him to drive the hot-rod to the dock, Eric holds a large silver revolver up to T-Bird's head, then removes a black automatic from T-Bird's hand and drops it into the front floorboard. A few moments into the chase we see Eric holding the black automatic to the side of T-Bird's head, and the silver revolver is gone.

Sarah: People once believed that when someone dies, a crow carries their soul to the Land of the Dead. But sometimes, something so bad happens that a terrible sadness is carried with it and the soul can not rest. Then sometimes, just sometimes, the crow can bring that soul back to put the wrong things right.

Trivia: When Eric first goes back to his apartment, right after he returns from the grave, it is raining inside the apartment and his movements look an awful lot like the movements he just made in the rainy alleyway. [Not really a mistake, but worth noticing - the filmmakers were forced to re-use some shots after Brandon Lee's death.]

Question: In this movie Eric came back one year after his murder, but why in the other movies do the others come back shortly after their deaths?