McCaugheys give 'Dateline' first glimpse of babies

For Miriam and Alan Helmick, both widowed, life gave them a second chance at love. They met at a dance studio, and everyone thought it would be a fairytale marriage - until Alan was found dead, and details from Miriam's past revealed she had some dark secrets.

Did a case of identity theft turn into murder?

Timeline of bike path rapist investigation after Joan Diver's death

Peggy Lipton shares darker stories in new book

Victoria Corderi: Were couples trying to adopt a baby taken advantage of and strung along? Dateline saw firsthand how this could be done.

A beautiful woman had brains, a multimillion-dollar business, and a brand new love in her life. So who would want her dead?

Son of former president makes case at Democratic convention

For one of the world's oldest moms, it's a labor of love