Lulu’s Reviews > A Study in Scarlet > Status Update

At this point in the book the detective Gregson has accused and arrested Arthur Charpentier, the son of the woman that owns Charpentiers Boarding Establishment, where Drebber was residing during his stay in London.
Gregson is proud of himself for finding the, in his mind, rightfully accused murderer and having arrested him, when Lestrade comes in and says that Arthur has been murdered…. Tell me how i knew…