One snowy night, Sherlock Holmes was in his house sitting by the fire.
All of a sudden a snowball came crashing through his window and broke it.
Holmes got up and looked out the window just in time to see 3 neighborhood kids who were brothers run around a corner.
Their names were John Crimson, Mark Crimson, and Paul Crimson.
The next day Holmes got a note that read: “? Crimson. He broke your window.”

Which of the 3 Crimson brothers should Sherlock Holmes question about the incident?