an evening visit to a liquor store ends up with the place turned upside down. >> i just stopped. i didn't believe it. >> and leads to a heated case of she said/she said. >> she's like, y'all always coming in my store. okay, now it's the you, now it's the y'all. >> i never said that. >> it all goes down on february 23, 2011, in nyack, new york, about an hour north of new york city. right buy liquor store is in a busy shopping center near two of nyack's frequented roads. it's about 6:30 in the evening. sarah chapman is working her regular shift when surveillance cameras capture a woman running through the door. she's taken a taxi here and leaves it waiting outside. >> i was familiar with the store. i was a frequent patron. i was on my break from work. i called a cab and went to the store. when i went to the store i was under the impression i was in the store by myself. so i went to the register. as you can see in the videotape,