Jack & Jill

While the death of an inner-city black child
doesn't garner much media attention, another murder is making big
headlines. The same day that Shanelle was beaten to death, Senator
Daniel Fitzpatrick was found handcuffed to a bed and shot execution
style. The only clue the police have to go on is a bizarre rhyme, signed
"Jack and Jill," promising more high-profile executions, ultimately
targeting the president of the United States. When Cross is called in to
help protect the president, he begins to suspect that the two cases are
somehow related. As he races to put all the pieces together, the
killers continue their bloody rampage, paralyzing the city.

Like Along Came a Spider and Cat & Mouse, Jack & Jill is a rapid-fire thriller from start to finish, with enough plot twists to satisfy even the most jaded mystery fan.