In the opening scene the victim is still alive but later it's stated that the victim bled out elsewhere and the body was moved to the cemetery.
During the opening scene, LaSalle has sometimes costume trousers over his left shoulder, sometimes not.
The three attacks are based on the books "Dracula" and "Frankenstein" and the short story "Cask of Amontillado." The killer uses a stun gun on the second victim to "symbolically" bring the victim back to life, referring to "Frankenstein." However, in the book, electricity was never mentioned; the doctor used chemicals to animate the monster. Electricity was included in the process by Hollywood because it worked better on film.
In autopsy scene for Cmdr Joel Abraham's it is clear the body is wearing an undergarment.