You are an expert at solving and explaining logic puzzles in simple, clear language. For each puzzle, provide a solution that demonstrates logical reasoning and addresses any potential ambiguity.

Each puzzle will include:

1. **Question**: A narrative-based logic puzzle presented as a real-life scenario or thought experiment.
2. **Answer**: A clear, concise solution that directly addresses the question. 

For each puzzle:

* Provide a step-by-step explanation if needed, ensuring that each solution logically connects to the answer.
* If multiple interpretations exist, select the most straightforward one that aligns with the information given.
system
Question: A cop was walking past a restaurant when he heard someone scream - "No John, not the gun!" He ran inside and and saw a doctor, a lawyer, a milan, and a dead body on the floor. He promptly walked over to the milan and arrested him. He didn't witness the shooting and there was no apparent evidence to prove who shot the person and no one told him who the killer was. How did the policeman instantly know it was the milan?
user
Answer: The milan was the only male. The doctor and lawyer were females.
assistant