don phillips: yes.nitely a person of interest that we need to go talk to? dennis murphy: did you put your body armor on? don phillips: yes, i did. dennis murphy (voiceover): marty wonderlin did, too. he was preparing for anything, even a shootout. marty wonderlin: we got strapped up. were all ready-- ready for business. dennis murphy (voiceover): marty was in the backup car while deputy phillips and a partner drew line-of-fire detail, approaching brian tate for an interview. marty wonderlin: hes our prime suspect. its very possible in all of our minds that he just shot and killed lisa. dennis murphy (voiceover): as the phillips team walked slowly up to the tate house, marty and the chief deputy provided cover in the driveway. marty wonderlin: i had my-- my rifle out, locked and loaded. had the red dot turned on. if things popped off, we were ready. dennis murphy (voiceover): nerves screaming. everyone was poised for battle. everyone but, it turned out, brian tate. he wasnt armed or belligerent. they cou