marriage to work, i did not give up. soon he was gone, vanished without a word or a trace. he left the young daughter behind. he left the house. was this a husband who did not want to be found? or could this be something else. detectives are not an undercover operation. that would lead to a long hard to say ready for that? i know that it has to happen. disappearance in the desert. could it be the perfect crime. i can only imagine what would be like to keep that. welcome to dateline. i m lester holt. for eight years it was a mystery, a husband who had simply vanished. on the surface it didn t make sense. he had a wife, a lucrative job, a daughter he loved. but investigators were told he also had a secret. so was he missing or was he hiding? that question would lead detectives to a dark discovery because someone else had a secret to. here s josh michael it s. there is an old saying, that two people can keep a secret if one of them is dead. we never talked about
john. the breaking news is this, a major development in the federal investigation into hunter biden the son of president joe biden. let s get right to kara scannell for details on this. kara, i understand there say plea agreement, what have you learned? reporter: yeah, john, the five-year investigation coming to a head. we have learned from court filings here, that hunter biden has agreed to plead guilty to multiple charges. these are two counts of filing tax returns in a timely fashion. those are misdemeanors. he s also going to plead guilty to the charge of a firearm offense. this is the possession of a firearm while you are addicted to a controlled substance. now, the firearm offense is going to be diverted. what that means if he meets certain conditions that charge will go away.