we're gonna find you, one way, the other. >> reporter: detective tony kemp also vowed to find her. with her old boyfriend ed. so he asked her friends what else would cause heather to leave her husband and children? that's when kemp began to flush out what really happened when heather moved out on chris. >> it was very scary. and it only continued to deteriorate. >> reporter: friends and family told him how at first, chris tried to woo her with flowers and chocolates, but those loving gestures soon turned ugly. >> he would text her and call her. but this time, they were just, like, violent, you know, "you're not taking my kids from me." "i'm not going to let you leave." "you won't get away with this. i will come after you." >> reporter: then, friends said, chris started acting more desperate, and heather started getting really scared. >> he would show up at her work. he would show up at the gym. he started showing up at the house in the middle of the night. i just remember thinking, like, "this is insane. like, you're, literally, stalking her." >> i got a lot of information on chris