to the twin sister, allison, to tell jurors about her sister. >> and are you related to mary catherine edwards growing up with catherine. >> she just was always very nurturing and loving to people. and if anyone had a problem, they would come to her. and she would talk to strangers and make friends with people and compliment people and just was an amazing person. >> allison recalls the afternoon where her sister's body was discovered. catherine just never showed up to this lunch. so eventually her father agreed to go check on her. >> and my dad answered the phone, and he was frantic, and he said, "your sister's dead. your sister's dead." >> it was just heartbreaking to see. i mean, her twin, her identical twin is what she would've looked like today if she was alive. and there she is up on the stand testifying, and the emotion and the love and the hurt, all of it came out and was so impactful with the jury. >> allison said when catherine died, she thought her parents died a little bit that day too. >> it was horrible. they were never the same. but we decided as a family after that happened that