But Inyo County Sheriff Bill Lutze said Friday that after analyzing information from the sites, he decided further testing was necessary.

CNN: More tests at Manson ranch for buried bodies

In May 2008, authorities dug for bodies at the Inyo County, California, ranch where Manson and his followers once lived, after police learned that testing had indicated human remains might be buried there.

CNN: New prison photo of Charles Manson released

Last month, authorities dug for buried bodies at the Inyo County, California, ranch where Manson and his followers once lived, after police became aware that testing had indicated humans might be buried there.

CNN: Prison boss opposes release of ailing ex-Manson follower

Barker Ranch is located on federal land but the decision whether to do a follow-up dig is up to the Inyo County Sheriff's Department, which wanted do more testing -- including sonar readings -- before spending the time and money to excavate.

CNN: Behind the Scenes: Body hunt at Manson ranch