Missing Liberty County woman Sheryl Ann Siddall: Dive team to search Horseshoe Lake

LIBERTY COUNTY, Texas - Sunday marked day seven of authorities searching for 57-year-old Sheryl Ann Siddall. Liberty County officials say she was reported missing Sept. 18 but hasn't been seen or heard from since Sept. 12.

Authorities have been searching the area near Horseshoe Lake since the missing report was issued.

"It's going to be an all-day effort and in hopes that we do come to a resolution for the family. The family is really hoping that something happens today that they can get some closure," LCSO Captain David Meyers said.

PREVIOUS COVERAGE: Liberty County woman missing

Residents in the area like Deanne Harmon gave authorities permission to search on and about their properties.

"They had the cadaver dogs out searching the area," she said. "They were in the water with the boats."

On Sunday, Captain David Meyers with the Liberty County Sheriff's Office says cadaver dogs alerted to an area in the lake around 1,000 feet from Siddall's residence. 

"Due to the few spots of interest that the dogs alerted in an area - I reached out to Baytown Police Department and they're activating their dive team," he said. 

PREVIOUS: Liberty County woman reported missing

According to the sheriff’s office, cadaver dogs and sonar will be used to again search the lake behind her home, and cadaver dogs will also search surrounding properties.

Sheryl Ann Siddall

When deputies came to Siddall's home on Sept. 18, they found Donald Lee Hassler, 52, who gave permission for them to search the home.

According to the deputy, he found what he believed to be a blood stain on the kitchen floor and suspected foul play. Authorities say Hassler told them conflicting things about where Siddall was. They also say all of Siddall's possessions, including her car and purse, were still at the home.

MISSING PERSON: 20-year-old with intellectual disabilities last seen in southwest Houston

Authorities believe they found evidence behind the house to suggest something was dragged into Horseshoe Lake, which borders Siddall's backyard.

Captain Meyers says that over the past few days, they've discovered even more evidence of foul play - but he can't disclose specifics right now. 

He says due to the evidence, the nature of this search has changed. 

"We pretty much have taken this thing for a few days now as a recovery effort," he said. 

Deputies arrested Hassler for having a gun as a convicted felon, but haven't pressed any charges on him concerning Siddall's disappearance. 

DOWNLOAD THE FOX 26 HOUSTON APP BY CLICKING HERE

The Liberty County Sheriff's Office, Texas Park and Wildlife Game Warden, Texas Rangers, Liberty County District Attorney, Texas Search and Rescue, Baytown Police, Baytown Fire, and Texas EquuSearch have all been involved in this recovery effort. 

Captain Meyers says the search will continue with the Baytown dive team Monday morning. 

Capt. Meyers asks that anyone who saw something suspicious and hasn’t yet spoken with investigators call the sheriff’s office at 936-336-4500.