Detailed text transcripts for TV channel - MSNBC - 20171120:07:59:00
Coming up -- a suspect who seems to want to help. and who has a brand-new clue for investigators. >> do you still want to talk to me about what happened that night? >> this thing needs to be figured out because this is just stupid, you know. >> reporter: when dateline continues. (cough) it's just a cough. if you could see your cough, you'd see just how far it can spread. robitussin soothes in seconds and delivers fast, powerful cough relief for hours. (giggling) robitussin dm max. because it's never just a cough.