Can't think of anyone better to play Titus other than Grant on the big screen; but would Titus benefit financially if such a movie was ever made?
A Son of Sam law is a law designed to keep criminals from profiting from their crimes by selling their stories to publishers. Such laws authorize the state to seize all money earned from such a deal and use it to compensate the criminal's victims.
The first such law was created in New York after the Son of Sam killings. It was enacted after rampant speculation about publishers offering large amounts of money for the serial killer's story. The law was invoked in New York eleven times between 1977 and 1990, including once against Mark David Chapman.