Franklin County, Ala. teacher faces sex charges June 17, 2011 at 2:36 PM CDT - Updated August 21 at 10:44 PM VINA, Ala. (AP) - Franklin County authorities say a 29-year-old Vina High School mathematics teacher is charged with having sex with a former student. Sheriff's investigators say Kimberly Bynum of Russellville is charged with being a school employee engaged in sex with a student under 19 years old. Officials say the 17-year-old student, who graduated this year, admitted to investigators he and Bynum had an affair. Investigators say they then called Bynum. Bynum remained in jail under a $10,000 bond. Assistant Superintendent Donald Borden says the school board will conduct its own investigation. Copyright 2011 The Associated Press. All rights reserved.