2 Sisters Killed in Freak Hammock Accident

Everyone is looking for ways to have fun and relax at home this summer. But you have to make sure you're relaxing in a safe way, as this family's tragedy will show you.

In a heartbreaking freak accident, two sisters died when the pillar holding a hammock they were laying in collapsed, burying the girls under a mountain of bricks. Their younger sister made a frantic and gut-wrenching call to 911 pleading for help as her parents tried to save their daughters. This kind of accident, where one of the hammock supports gives way, is not unprecedented. Hammock safety experts say they happen with surprising frequency when hammocks aren't properly secured. Here's how to safely rig up your own hammock.