While DI Poole is interviewing one of the band members a Ball Python can be seen wrapped around the band members neck. While camera is focused on the snake you can clearly hear a rattle sound. Ball pythons do not have rattlers instead the sound is from a rattle snake.
When the "casket" is opened onstage at the beginning, you can clearly see the blood-run from the wound is running downwards to his jaw, but in the flashback near the end of the story we see that he was shot while laying down, which means the blood should have run toward the back of his head. Also, the wound was slightly back on the side, indicating his head was turned to the left when he was killed, but the flashback shows him facing to the right and looking at his attacker when the shot was fired. AND, his hands were crossed over his chest while laying down, so how did they remain in that position minutes later when the casket was opened in a standing position?