get north korea to denuclearize. two articles of impeachment have been prepared against president trump. the full house is expected to vote on them next week. the u.s. and china say they ve reached a limited phase one trade deal, president trump announcing he will not impose another round of tariffs. i will see you at the top of the hour for msnbc live. welcome back to dateline . i m craig melvin. was narcy novack involved in the grizzly murder of her wealthy husband ben? the new widow told detectives ben enjoyed it when she tied him up, similar to the way he had been found. she also failed a lie detector test. even so, investigators had no evidence linking her to the crime, but there was one person who was convinced of narcy s guilt, her own daughter, may abod, and she was about to put herself at risk to prove it.