Ah, I didn't really expect someone to get it that quickly. Here's one that actually is a whodunnit...
A man is murdered in his room. He had taken the blunt end of the pistol to the head. Three suspects A, B, and C were arrested and interrogated in a soundproof room. The policeman put the pistol in the center of a table and began interrogating the suspects.
A was the victim's butler. "Sure, the man and I had a few fights here and there, but I wouldn't bash his head in like that."
Suspect B was shaking. "I can't believe someone would kill him. He was so nice to me."
C was the victim's employee. "Wow. He really hated me, but I don't have a reason to kill him. I mean, why would I shoot the person that gave me money?"
Who killed the man?