Absolutely one of the worst mysteries I've read - well, the mystery was not all that bad, but the writing was very vanilla.  By that I mean: fairly simple sentences and almost no interesting, imaginative adjectives.  About half way through, I was bored, and I "paged forward" to the end just to see who the murderer was.  A surprise - which is the only reason I gave it two stars.  Further, I could not figure out how the perp knew where the to-be victims were and how to get at them.  Maybe that was in the part I skipped.