MANKATO-August 20, 2012-(KMKO)-Felony drug charges have been filed against a Mankato women for selling methamphetamine.  21-year-old Amber Rae Murilla is accused of selling just under one gram of meth to a confidential informant working with the Minnesota River Valley Drug Task Force.  Murilla is charged with third degree sale of a narcotic.  Previous convictions on her record include domestic assault, terroristic threats and possession of drug paraphernalia.