Halloween (1978) horror that is suggested but not actually seen

What you actually see and what is implied

• A knife being pulled back then lunging off screen - The girl is being stabbed 
• A shoulder facing Laurie and heavy muffled breathing - Someone watching Laurie is wearing mask                                                                                 
• Hair of a person hiding in the house - The shady figure is Myers returning home
• Point of view from inside a car watching Laurie - Myers is watching Laurie from the stolen 
• The doctor and officer looking at something in disgust - The horrific scene of a dead animal
• View from behind a tree of Laurie - Somone is watching Laurie
• Dark room and muffled breathing - Myers is in the room
• Myers wielding a knife and then Bob's feet off the ground - Bob has been stabbed so that the knife is holding his body pinned off the ground