MSNBC Dateline December 19, 2021 07:45:00
Alive. i didn't know. that's when i had the knife. and to make sure, had cut her throat. >> reporter: then, bennett said he wiped the place down. and to throw forensics off he ransacked the bedroom and used heidi's lipstick to make that number one on the living room wall. after that, bennett says, he fled. that's it? >> that's it. >> reporter: heidi's dead. >> heidi's dead. >> reporter: detective childs pressed who was the client? he showed bennett a photo array of six suspects. assistant state attorney matt breault. >> he immediately separates four photographs and says, "it's definitely not t...