so, the decision is made we have to talk to ryan tate?ly a purse often interest we need to talk to. >> did you put your body armor on? >> i did. >> marty wonderland did too. >> we're all strapped up. we're all ready for business. >> reporter: deputy phillips and a partner drew line of fire detail, approaching tate for an interview. ? he's our prime suspect. for it's very possible in all of our minds that he just shot and killed lisa. >> reporter: marty and the chief deputy provided cover in the driveway. >> had the red dot turned on. if things popped off, we were ready. >> nerves screaming, everyone was poised for battle, everyone, as it turned out, except for brian tate. he wasn't armed or belligerent. >> he was accommodating and got chairs. and we sat down in his front yard. >> in the front yard, in lawn chairs, his mother and brother by his side. no shotgun in sight. so, the cops turned on a recorder and started asking questions. >> you asked where are you? >> yeah. he said he was sleeping off a higher dose of medication for his schizo