40 years after Donna Awcock's murder, her sister remains determined to catch her killer

40 years after Donna Awcock's murder, her sister remains determined to catch her killer

Donna Jean Awcock, 17, was a lively person who loved to babysit and play baseball. 40 years ago, she disappeared after a babysitting job and was found murdered on Oct. 13, 1983. Her older sister Tammy Dennett is determined to keep her story alive, and to bring her sister's killer to justice.