Clock

The clock is now just three minutes off midnight. You've been thinking about what's happened for the past hour but still haven't come to any conclusions. Lord Barnacle-Smythe is your chief suspect, but you don't quite trust the old woman either. Her information may be useful, but the elderly can be vicious sometimes when angered. Could she have killed the blonde?
Even though the body has now been removed, no-one wants to sit down at the table. You guess it's understandable.
With a deep boom the clock hits midnight. It bongs twice more when the lights suddenly go out again.
"But I can't control what numbers come out!" a male voice cries, then a nasty gurgling noise replaces it. With a fizzing of electronics the lights come back on and you notice the doctor has apparently become the next victim. His prized speculum seems to be plunged deep into his heart, and he isn't moving.
The countess wails somewhere but you barely notice, quickly seeing who was closest to him. The old woman and Lord Barnacle-Smythe are the closest, but the old woman quickly moves away.
"Unbelievable!" cries the fat Belgian detective. "A second murder."
No-one repremands him for stating the bloody obvious, but tensions are clearly fraught. From what seemed like an isolated murder, all the guests are suddenly fearing they will be the next. Perhaps the murderer intends to kill everyone?
The clock finishes booming and no-one else speaks.
"So," says the fat Belgian, breaking the silence for the umpteenth time and annoying everyone. He then starts to repeat all the clues we know so far, but you don't bother to listen. You wonder how sharp the speculum needed to be to impale the doctor.
"What do you think?" asks the fat Belgian. You suddenly realise he was talking to you, and you don't have the slightest idea what he said. You ask him what about.
"This!" he replied, throwing out his arms for emphasis. "The murders."
You shrug and tell him you have your theories and believe yourself close to solving the case. The detective huffs and dismisses your theories. He even looks a little flustered. "Rubbish! I'll be the one to solve this mystery! The fat detective always does!"
What an annoying man.