We are usuing a butchers knife as the murder weapon in 'The Intruder' as it is much bigger than other knives we had access to so it would show up better on the camera and would catch the light from behind the Intruder coming from the bathroom.
The Butchers knife was also used as the murder weapon because it gives the Intruder the title of a 'butcher'. He not only kills his victims, he butchers them. This plays on the audience's mind, and leaves them thinking after the opening of Intruder has finished. It diminishes his previous and future victims as labels them animals. It shows that he really is evil and was intended for the audience to become nervous as to what else he could do in the rest of Intruder.
The Bracelet-
An intertextual reference to the Heavenly Creatures where Pauline and Juliet kill Pauline's mother after she tries to end their obsessive relationship. The girls take her mother for a walk in the forest and place a jewel on the route so that she bends down and picks it up, making it easier for the girls to kill her. Similarly in Intruder, he places the bracelet on the floor of the flat so she sees it and bends down to pick it up, leaving her in a vulnerable position making it easier for the intruder to kill her.
