on this day, villucci makes nabbing pickering priority number one. >> we just drove by roy pickering's house. i did see his work truck in the driveway, so we're going to go get another look. set up a location so we can watch him. >> villucci and three investigators in separate cars have staked out both of pickering's houses. they hope to catch him working without a license. >> you see the blue truck leave, if it's a big blue truck, that's the one we want. it's going to have pickering in it. you know what he looks like, right? >> yep. we've put three investigators positioned around pickering's house to cover the exit. so when he leaves, we'll be able to tail him. >> got the truck rolling. he's rolling my way. >> right behind him. >> okay. hurry up, doug. >> you better catch up. >> after 30 minutes of high-speed u-turns and circular driving, officers suspect that pickering knows he's being tailed. >> he's screwing with you, rick. >> i've been screwed with before.