Cadaver dogs will join search of 3 brothers' Shelton home in sex abuse investigation

This browser does not support the video element.

After detectives searched for days at the North Seattle house where three brothers allegedly spent most of their lives abusing children, the investigation now turns to a 17-acre property in Shelton.

Charles Emery, 82, Thomas Emery, 80, and Edwin Emery, 79, were arrested and charged with possessing child pornography.

Detectives said they discovered a staggering amount of child pornography, along with children's worn clothing, underwear, small shoes, toys and movies. Investigators believe each of the men spent the majority of their lives sexually abusing children.

Scroll down to keep reading.

But it was an unearthed “manifesto” about Satanic rituals, kidnapping, raping and killing girls that led detectives to dig under sheds, searching for evidence of potential murder, detectives said. Charles’ writings were found buried and partially burned -- along with a child's hat.

Their search extended from the home in the Green Lake neighborhood to another home the brothers owned 90 miles away in Shelton.

%

%

The Emery's now-deceased brother, Donald, remained in the Shelton home until 2016. Grays Harbor County Sheriff Rick Scott told KIRO 7 News that detectives intend to do an extensive search of the Shelton property; cadaver dogs and the Department of Homeland Security will help with the search.

Scott and his detectives are also investigating whether the brothers have any connection to the 2009 disappearance of Lindsey Baum.

Baum disappeared from McCleary while walking back from a friend’s house. The 10-year-old’s disappearance sparked a nationwide investigation.

McCleary is a roughly 30-minute drive from Shelton.

“The Lindsey Baum case has been and will be a priority until we find closure, or find Lindsey safe. We’ve worked on the case every day in some shape or form,” Sheriff Rick Scott said.

%

%

Additionally, Mason County detectives are looking into the cold case of Tracy West, who was abducted and killed at 17 years old in 1988.

A file about Baum was found in the Shelton home, but there is no known connection between the brothers and the disappearance of Baum.

Tracy West, 17, was called into work at this Shelton restaurant in 1988. She was on her way on a trail riding a motorcycle when she was abducted and killed.