Benny eating a baby. This explains the presence of an empty cradle in the first cave on the left.
Inventory items such as a silex rock and an Egyptian spear (possibly would have been used as weapons). The remote control, only useable in the endgame, would have been in Gorrister's possession in his scenario.
The Benny scenario would have actually gone into his homosexuality; that implies that he killed Brickman because he was his lover, that he did not want the other soldiers to spread the word and he would have had to accept his sexuality as a way of winning at AM's game. Not to mention the game still keeps the puzzle where he has to plant a flower on his grave with a fruit as a sign of "compassion" and the fruit is later described as a symbol of "love"...
It is possible that the Yellow Rapist was supposed to be shown as an undead Mummy in yellow bandages; this would be the reason why he is found in a sarcophagus and that a yellow bandage is found lying around.