TEEN PLEADS GUILTY IN RAPE, SLAY OF GIRL, 7

Jeremy Strohmeyer, 19, changed his plea to guilty at the last minute yesterday to raping and strangling a 7 year old girl in a casino bathroom, to avoid the death penalty.  Under a plea bargain struck just before opening statements, were to have begun, he will spend the rest of his life behind bars for the murder of Sherrice Iverson in the Primmadonna Casino in May 1997.  Strohmeyer said he kidnapped, molested and strangled Sherrice.  The decision to seek a plea bargain was reached Friday, when prosecutors said they had