Riddles [COMPILATIONS]

SHERLOCK HOMES and THE CRIMSON BROTHERS

P.S I find this on internet.

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One snowy night, Sherlock Holmes was in his house sitting by a fire.

All of a sudden a snowball came crashing through his window, breaking it. Holmes got up and looked out the window just in time to see three 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 on his door that read

"? Crimson. He broke your window."

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

ANSWER??