Live updates and the latest news as Defense Secretary Pete Hegseth testifies on the Hill, Trump grapples with the Israel-Iran ...

Plus, Donald Trump called on Iran to surrender unconditionally, and Israel stepped up its attacks on Iran's uranium ...

Dateline covered a case from August 2003, involving a 22-year-old New Mexico State University graduate student named Katie Sepich who was killed in Las Cruces, New Mexico.

NBC Dateline's recent episode, titled Deadly Obsession, was a harrowing case that spanned more than two decades.