Detectives seek tips 45 years after shooting death of Yellow Pages heiress near the Hoover Dam

Arizona detectives are seeking tips from the public more than four decades after a 25-year-old heiress was found shot to death near the Hoover Dam on the border between Nevada and Arizona. 

It's been 45 years since the body of Marion Berry Ouma was found on an embankment near the highway, but no arrests have been made. Ouma inherited $40 million after her grandfather, Yellow Page founder Loren Berry, died, said the Mohave County Sheriff's Office Special Investigation Unit, the agency investigating the cold case. The sheriff's office said Berry was worth $500 million and one of his grandsons pegged the company's value at almost $1 billion when it was sold.

Authorities found Ouma's body on Jan. 3, 1979. They believed she had been dead for less than 12 hours, said the Mohave County Sheriff's Office. An autopsy revealed that the victim had been shot in the head and abdomen with a .38 caliber weapon, but investigators didn't know her identity at the time.