The state will not try Pamela Smart on charges she tried to hire someone to kill a teenager whose taped conversations helped convict her of masterminding the murder of her husband.

Smart, 23, the former media services director at Winnicunnett High School in Hampton, was sentenced to life in prison without the chance of parole after being convicted last month of being an accomplice to first-degree murder in the death of her husband, Gregory, 24.The murder was carried out by Smart's teenage lover, William Flynn, and two other youths.

While she was being held for trial, Smart was indicted on three counts related to an alleged attempt to kill Cecelia Pierce, 16, her former student intern who cooperated with police in their investigation of the May 1 murder.

"Pamela Smart has already been sentenced to spend the rest of her life in jail," Attorney General John Arnold said in a statement released late Monday. "To pursue these charges . . . would serve no useful purpose at this time."

A hearing had been scheduled for Wednesday on a motion by Smart's lawyers to quash the indictments, which were returned Jan. 4 by a Hillsborough County grand jury.