'I can,' Holmes said coolly. 'Let us look at the dates of
the murders. He kills, waits a week, kills again and
waits three weeks before the next murder. This
changes only when he has, as he tells us, 'no time to
rip', and has to kill twice on the same night. The
following week there is no murder. I tell you, Lestrade,
this is no crazy killer. This is a man who is following a
plan. He works only in Whitechapel, and in the early
hours of the morning