Careful what you search for: it might find you
Robert Petrick is on trial in North Carolina, charged with murdering his wife and dumping her body in nearby Falls Lake. Prosecutors recently entered into evidence information about Google searches performed by Petrick days before he reported his wife missing. The searches included the keywords "neck", "snap", "break", and "hold". Other searches concerned lake levels, water currents, and boat ramp locations around the lake.
Oops.
(From WRAL.com, via the News.com Google blog.)