here's kate snow. >>> for 3 1/2 hours after armed gunmen stormed the westgate trapped.rine walton crouched for cover with three young daughters under a temporary kiosk with gunmen patrolling nearby. and faith and her two young children played dead all that time. they moved once and were instantly shot at. as a man approached them, faith held her position, but he wasn't a terrorist. he was a police officer. >> baby, baby, touching my daughter, baby, baby. are you okay? are you okay? and i said, wow. in my mind i'm thinking this must be a good person. they want to find out if we're okay, not are we alive. then he said, it's safe. it's safe. it's the police. >> reporter: faith's 9-year-olddaughter was the first to move. >> my daughter put up her head. quite hesitant and asked him are you with the bad guys because, i mean, i was still looking down. i was scared. i thought now they've come where we are. so my daughter put her head up. it was too late to tell her to go back down, engaged the are you with the bad people? and then said mama, look up. and then almost against her