This week, authorities in Albuquerque continue searching for clues in the mysterious disappearance of retired U.S. Air Force Major General William Neil McCasland.

Neighbor recounts the frantic search for Nancy Guthrie after her mysterious disappearance.

Nancy, 84, was last seen on January 31 when she was dropped off at her house in Catalina Foothills after having dinner with ...

Investigators are “definitely closer” to identifying a suspect or suspects in Nancy Guthrie’s disappearance, the Pima County ...

An expert who worked on the infamous Idaho murders case has explained how digital technology could unearth new clues in the mysterious disappearance of Nancy Guthrie. “People forget how much their ...

Saturn’s largest moon, Titan, is one of the solar system’s oddities. Now, researchers have unlocked key insights about this mysterious moon, including how it<a class="excerpt-read-more" href=" More ...

From underwater crop circles to the Bermuda Triangle, these deep sea mysteries actually have pretty logical explanations.

The sheriff leading the investigation into Nancy Guthrie’s mysterious disappearance has acknowledged the interest in her son-in-law Tommaso Cioni as a potential suspect. However, Pima County Sheriff ...