SANTA BARBARA — Santa Barbara police are scaling back their search for the remains of a 7-year-old girl who vanished 50 years ago.
Investigators have been digging for about a week in an area by a freeway overpass that Mack Ray Edwards helped construct in 1961.
Police think the confessed child serial killer may have been responsible for Ramona Price's disappearance.
In a statement Monday, police said investigators had searched without success the areas Price most likely would have been buried, though cadaver-sniffing dogs continue to signal the presence of human remains.
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Authorities say it's possible the smell had seeped from an older burial much farther away.
One detective will remain at the scene to check for possible evidence.
Edwards hanged himself while on death row in San Quentin prison in 1971.