RIVERSIDE (CNS) - A 33-year-old woman who killed her newborn son and dumped him in a Perris trash bin pleaded guilty today to child cruelty and other offenses and was immediately sentenced to 12 years in state prison, though the term was reduced due to incarceration credits.Brittany Suzanne Peevyhouse of Perris admitted the abuse count and sentence-enhancing allegations of inflicting great bodily injury and perpetrating an offense against a vulnerable victim under a plea agreement with the Riverside County District Attorney's Office.In exchange for Peevyhouse's admissions, prosecutors dropped a murder charge against her.During a hearing Friday at the Riverside Hall of Justice, Superior Court Judge Jeffrey Prevost certified the terms of the plea deal and imposed the sentence sti