STOCKTON —The former model arrested in connection with the killing of a 71-year-old Salinas doctor made a brief court appearance Monday in San Joaquin County Superior Court.Kelsey Nichole Turner, who is awaiting extradition to Nevada on a murder charge, is accused in the death of psychiatrist Dr. Thomas Burchard, whose body was found March 7 inside the trunk of an abandoned vehicle in a desert area of Las Vegas.