Had the appellant's sister murdered the other members of her family with the moderator attached to the gun and then discovered she could not reach the trigger to kill herself, the moderator would have been found next to her body. There would have been no reason for her to have removed it and returned it to the gun cupboard before going back upstairs to commit suicide in her parents' room.
Sheila could have crawled inside the gun cupboard and tried to shoot herself. Realising that the gun was too long she unscrewed it and dropped it in the box. Then she became distracted and went up to the bedroom.