>> i think at the time she was probably hoping that it would work, hoping he would knuckle under and obey her, but i think later on she saw that that wasn't going to work. she knew she had her child and that's what she really wanted. >> and ed believed jennifer would do anything to keep sydney from stephen. >> she just said he couldn't have her. >> even going so far as pulling the trigger herself, ed says. after all, the murder weapon was not shirley's. it was jennifer's. >> jennifer has every motive to do it. >> he says even if his mother was the one who killed stephen, she was probably driven to it by jennifer. >> so my mom and dad was around jennifer and her mouth 24 hours a day. and she is very annoying when it comes to something that she believes in. and she believed in not giving stephen the daughter. and she talked about it