Retired Detective Sergeant John Griffin is speaking out for the first time about the Luigi Mangione case, telling anchor ...

To find out what happened, watch the full episode “Book of Lies,” available now on Peacock. You can also watch on the NBC app or listen to the full episode on our podcast. Plus, hear from trial ...

The Murdaugh murders have been subject to many speculations in the the true crime realm. Here's what is streaming about the ...

"Dateline" is airing a new episode on Friday, May 8. Here's everything you need to know to watch, live or later on, if you missed it.