>> hi, justin. >> hello. >> hi, it's detective jodi gonterman with the apd. how are you?about yourself? >> good. >> the call started off well enough, but the tone quickly changed. hansen said he felt targeted and outright refused to give a dna sample. >> i felt like the way you guys were coming at me was like no matter what i said, i was the person you were looking for, and no one wants to be that. >> hansen ended the call demanding an apology. >> i'd appreciate a call to let me know you're sorry. >> i'll apologize after i get your direct dna. >> detective gonterman had been investigating justin hansen for five months now, yet there was still a question mark next to his name. so time again for gonterman to get creative. >>> coming up -- an undercover mission to mcdonald's? >> they followed him and they watched him eat. >> a hunt for treasure in the trash. >> i said, i can't believe this. >> when "dateline" continues. with downy infusions, let the scent set the mood. feel the difference with downy. growing up in a little red house, on the edge of a forest in norway, there