>> reporter: her friends say shawn had a temper and kaitlyn witnessed it firsthand one night after a dinner. shawn was drunk kaitlyn says, so she didn't want brooke to drive home with him. >> he did not like that. he began to get very angry. and we drove just down the street, pulled into the parking lot. and i pulled up right beside her car and she opened the door. and shawn was like right there, grabbed her by the arm. i told her, "brooke, just get back in the car." and so she did. she got back in the car. and we drove off. >> reporter: friends say similar incidents followed. brooke felt shawn was stalking her, showing up unannounced and uninvited when she was out with friends. even after she stopped working for him. >> she definitely knew that something was wrong, you know, after he was obsessive with her, calling her multiple times and texting her and then stalking her. you know, she knew that, you