Final Destination (2000)

Plot hole: When Alex and Clear are sitting and having coffee they are on a corner. He looks in the window to see the bus pass, and as he looks to see if it is there, it's not. As the camera pans across the street, there is some construction going on which is blocking that whole road from being used, but then Terry, Carter's girlfriend gets "waxed" by the bus - no way it could have got through all that construction.

Bludworth: In death, there are no accidents, no coincidences, no mishaps and no escapes.

Trivia: In the airport after the plane explodes, it shows Terry with a terrified look on her face. Right behind her is a picture of a bus, which is the way she would die later in the movie. Also, at Ms. Lewton's house, when she is standing in front of her computer, behind her is a stained glass window with a picture of a knife, which is how she would later die.

Question: I don't get how Alex could have died in Clear's Dad's cabin with the fishing rod opening the door and the rusty fish hook and the knife flying out. What happened behind the door?