Shay

Plot hole: When the professor put Travis' credits on the film he left in place of the real thing, some of the differences between film and credits would be very noticeable. For example, Sandra would be listed as having acted in the film, when she obviously wouldn't have been in the new film.

Shay

Factual error: When the girl with no kidney is decapitated, there's not nearly enough glass left in the window to take her head clean off while leaving it in the fixture.

Shay

Plot hole: The black guy who is murdered in the Tunnel of Death is hit in the head with a pickaxe. The coroner should have discovered the wound from this, which would have sparked a proper investigation into the deaths, which may have led to the killer being caught earlier.

Shay