CHESTER — Jurors today found former suburban Chicago police officer Drew Peterson guilty of trying to hire someone to kill the prosecutor who helped to convict him in the killing of his third wife.The jury started deliberating at about 11:30 a.m. today, after closing arguments in the trial that started last week. Peterson, 62, is serving a 38-year sentence in ex-wife Kathleen Savio’s death and faces up to 60 more years in prison.Today, prosecutors said prison recordings of Peterson speaking with a fellow inmate …