Officials say worker who found child 's remains called in one tips in five months ago . Authorities looking into whether earlier tips were mishandled . Casey Anthony 's friend told police to check the area August , Sheriff 's Department reports . WFTV says new skeletal remains found in search area .
Officials say worker who found child 's remains called in three tips in August . Authorities looking into whether earlier tips were mishandled . Casey Anthony 's friend told police to check the area five months ago , WFTV reports . Sheriff 's Department says new skeletal remains found in search area .