In the N64 beta of the game, STARS Bravo Team member Edward Dewey is found missing a right hand, after being attacked by Cerberus dogs. This would explain the severed hand holding a gun that would be found by Joseph Frost in the original Resident Evil.

In the final game he still has both hands as the remake of Resident Evil no longer has Joseph finding a severed hand.
Contributed by MightyKombat