Texas True Crime: Texas Mansion Murder | Full Documentary

Before they were the center of one of the strangest murder mysteries in Houston history, they were a glamorous couple at the top of Houston society. She was the River Oaks socialite who had it all. Joan Robinson Hill was a strikingly beautiful woman, and a talented national equestrian star. In the 1960's, she and her plastic surgeon husband, Dr. John Hill, were well-known in the highest circles. Then it all came crashing down. The murders and conspiracies that swirled around the Hills would become one of the biggest stories to come out of Houston's fanciest neighborhood - River Oaks.