Fond du Lac County authorities say the remains of Bobby Jo Fritz have not been found, but investigators recovered potential new evidence while searching a home connected to the childs 1983 disappearance.The Fond du Lac County Sh eriffs Office said the search warrant executed Thursday, July 16, was completed late Tuesday, and the property was released back to its owner, who authorities said has no connection to the case.Investigators said the evidence collected during the search will undergo further analysis in hopes of providing new insight into the boys disappearance.Authorities said detectives reopened investigative leads over the past year by reviewing original case files and interviewing several people, including some who had never previously been questioned. Investigators said the information developed enough probable cause to obtain the search warrant.An initial basement search uncovered potential evidence, leading to a larger excavation involving several agencies. Authorities said approximately 500 five-gallon buckets roughly 30,000 pounds of soil were removed and sifted by hand during the excavation.All evidence recovered during the search will be sent to specialized laboratories for analysis, a process investigators said could take months or longer than a year.Robert Bobby Jo Fritz disappeared May 14, 1983. He was last seen playing outside with his siblings between 2:30 p.m. and 4:30 p.m.The sheriffs office said it remains committed to uncovering the facts surrounding Bobby Jos disappearance and bringing closure to his family.Anyone with information related to the case is asked to contact Detective Tyler Tikkanen at 920-929-3384 or leave an anonymous tip through the Fond du Lac County Tip Line at 920-906-4777. ...read more read less