but sisters jana jurnigan and jill fritz were barely aware of the george hennard who lived in the bigcorner down the road from them in belton, texas, not far away from the site of the massacre he was to perpetrate only months later. hennard had been watching the sisters, his obsession with the young women prompting him to write them a five-page letter that he sends to the wrong address. >> how are you doing? this is george calling from las vegas. i've got a case of mistaken identity on my hands. >> reporter: realizing his error, hennard leaves this message on the girls' mothers' answering machine. >> i wrote a girl named stacy weatherford a letter. the letter was not for her. it was for your daughter. i don't know her name. please go over there to the weatherford residence and make sure you get the letter for them including the four pictures. it's a mess. and if they don't want to give it to you, call me back and let me know. >> the more i listened to it and the more it went on, i thought, oh, my goodness, you know? who could this be? >> reporter: jane bug retrieves the letter and enc