Searchers focused on the 10 acres (4.0 ha) of the lake around the cove where Williams' truck was parked. His boat was soon found roughly 225 feet (69 m) from the ramp by a helicopter pilot who initially assumed it was a boat being used in the search. In it, investigators found his shotgun, still in its case, but not Williams himself.
A possible new lead emerged in October 2007, when Michael Williams' older brother found a photograph and the serial number of a .22-caliber Ruger pistol that had once belonged to their father. Michael had inherited it after his father's death, and after Michael was declared legally dead it was the only one of his firearms that Denise Williams had not returned to her former in-laws. After the Jackson County sheriff's investigator Wester asked the federal Bureau of Alcohol, Tobacco and Firearms (ATF) to look for it, agents visited Denise and Brian Winchester, now married, in their house (the same one she had lived in with Michael) to interview them.
Several days later, their attorney delivered the gun to the FDLE. It was sent to a state forensics laboratory for DNA testing: the results have not been reported.