and stop. >> scooby-doo ends the interview pretty quickly. >> i'm tony with the sheriff's office. and this is theresa. >> but sheriff's investigators like tony knots and secret service agent disguised because of undercover work have others to question. >> basically you have been caught in a sting operation. that's why you're in handcuffs. >> christopher canon is the 32-year-old volunteer church director who mentioned several sexual positions he would like to try with a girl posing as a 15-year-old. he's the one who ran as soon as he saw me. why don't you have a seat real quick? >> yeah, okay. i just went to text her. that's all. >> but that's not what he tells investigators. >> it's funny. when i saw this on "dateline" a few months ago or whatever -- >> you show up in the middle of it. >> yes. that is so sick. why did i do this? >> the investigator reminds him he had been chatting online with the decoy for more than a week and many times the chat turned