Who's the culprit ??????

Question

SHERLOCK HOLMES was relaxing in his study when suddenly a stone shattered the glass of one of the windows overlooking the street below.

Holmes ran to the window and looking out , caught sight of the Hamilton triplets - Andrew, Mark and Tony - disappearing round a street corner.

The next morning he received an anonymous message. It read :

? Hamilton

He broke your window.

which of the triplets or some one else is the anonymous writer accusing ?

Answer 1

Question "Mark" Hamilton.