Maine authorities investigate paddleboarder Sunshine Stewart's murder near Crawford Pond, urging calm amid community fears of a possible serial killer in the region.

Maine State Police have not arrested anyone in the murder of paddleboarder Sunshine Stewart. The 48-year-old woman's cause of death remains a mystery.

Park rangers in Colorado rescued a woman from drowning at the Horsetooth Reservoir on Thursday afternoon.

Stunning new video showed a great white shark just feet from a paddleboarder off a Massachusetts beach. It’s just the latest shark encounter caught on tape across the U.S. this summer. NBC News’ Sam Brock reports.

A paddleboarder was mysteriously murdered in a small Maine town — and authorities are urging calm as the killer remains unknown.

A ranger saved a woman “actively drowning” in Horsetooth Reservoir after a gust of wind pushed her paddleboard away from her.

The body of 48-year-old Sunshine "Sunny" Stewart of Tenants Harbor was found on July 3. Her death was ruled a homicide.

A PADDLEBOARDER who mysteriously vanished during a camping trip has been found dead.  Sunshine “Sunny” Stewart’s body was found just hours after she went out onto the water in Maine.  The