Sherlock Holmes was relaxing in his study when, suddenly, a snowball struck one of the windows overlooking the street below, causing it to shatter. Quickly, he went over to the window to investigate and, looking out, just caught sight of the Willoughby triplets, Danny, Mark and Oliver, disappearing rapidly round a street corner. The next morning he received this anonymous message: ? Willoughby. I am certain he broke your window . According to this, which one of the triplets should he question about the incident? Show Answer