He told investigators he suspected the bodies were in the hole but didn't look inside to confirm his suspicions before a backhoe operator filled it in. Prosecutors said the backhoe operator died years ago.
While no one has been charged in the deaths, prosecutors have alleged that Prewitt deliberately interfered with attempts to prosecute his mother, who died in 2011, and other family members.
Prosecutors say in court documents that investigators had Prewitt wear a wire to secretly try to elicit incriminating statements from relatives. The effort failed, and investigators contend that Prewitt sabotaged the investigation.
Jones has disputed that, saying his client voluntarily stepped forward to help law enforcement.
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