**If you've seen the movie then read this, otherwise don't**
In the beginning the guys in the morgue are examining Jigsaw's body and find the tape in his stomach cause they are cutting him open. Right? In the end, the detective guy goes into the locked room and sees the guy who shot Amanda in "Saw 3" standing there asking where is his daughter? Then the detective kills him, well Jigsaws body is still in the room....now how were the guys from the morgue cutting his body open if it is still in that locked room?!?! Doesn't make any sense if you ask me. Someone please explain this to me :)