Random murder isn't really entertaining.
Please develop a decent plot to go with this because you have good drawings and sound here. Random killings are not funny (except when done in a humourous manner) and honestly, you should make it longer or give some depth to this "story". Who is he? Who was she? What was his motive? Also, on a side note, how the hell did he stab her thrice in the back through the shower curtains without ripping them?