A sudden moment of terror launches a frantic search for a costumed killer. Reported by Josh Mankiewicz, “Internal Affairs” is a story about bad choices, a fatal attraction and people who proudly wore badges at work -- while living lies at home. Follow now to get new episodes weekly, or subscribe to Dateline Premium on Apple Podcasts for early access and ad-free listening: apple.co/datelinepremium

A secret affair gets discovered, and a murder suspect gets cuffed.

When a wife and mother is murdered in Greeley, Colorado, responding investigators suspect the costumed killer is someone they know.

Choices about relationships, revelations and reconciliation set a murder in motion.

A detective plays cat and mouse with an unusual suspect, while crime scene evidence raises questions for investigators.

Recorded phone calls from a suspect in jail reveal the ties that bind unraveling.

A woman at the center of the case turns state’s evidence and the defendant takes the stand.

Hey Dateline fans, we’re sharing with you a special preview of the first episode of an all-new season of Dateline: Missing in America.

Josh Mankiewicz tells the story of Arelie Garcia, a 25-year-old woman who left her Salinas, California apartment she shared with her mother in 2022, and hasn’t been seen or heard from since.

Each of the six episodes will focus on one person’s story, as told by those left behind. Listen carefully to the details, descriptions and clues offered by family, friends and investigators. Something you hear might jog a memory that could help authorities crack a case.

Follow Dateline: Missing in America and listen now: https://link.chtbl.com/dmiast_lw