The Latest: 2 wanted in disappearance may be going to Mexico

The Snohomish County Sheriff's Office says it's working with U.S. marshals and Phoenix police to track down the Reeds, who are described as armed and dangerous.

Court documents released Monday say that a man wanted in connection with the disappearance and presumed slayings of a married couple previously threatened to shoot them for cutting brush between their two properties.

The Seattle Times reports (http://bit.ly/1rdrkgp ) that John Blaine Reed who shared a common driveway with Patrick Shunn and his wife, Monique Patenaude, "reportedly stated he would shoot or assault them if they didn't leave" him alone, investigators wrote in an affidavit for a search warrant.

Snohomish County Sheriff Ty Trenary said surveillance video linked them to the dumping of the victims' cars over an embankment in a remote, wooded area near Oso, about 50 miles northeast of Seattle.