>> and then it was a sunday in late march spring cleaning time. and a woman called in she'd found something on the edge of her property. >> how far away from the party was this? >> that was 2.3 miles. so, that is a route that -- you know, many people leaving the party would have taken. >> her name was sheryl retzlaff. this is her. she told the detectives she'd been cleaning up a winter's worth of debris along the country road. just like every other spring. >> what-- what sorta stuff do you find out here? >> yeah. i find all manner of things. i mean, i have found cameras hanging from my trees with cd-- you know, the-- the disk cards in them. we've found car radios and speakers. and cases of booze and broken booze bottles. -- >> my husband comes home from work and as per the usual he's like, "so what'd you find this year? " i'm like, "well, i didn't really find anything but trash, other than this shoe." and he was i'm -- instantly on alert. a shoe. he's like, "you know, sheryl,