The 2006 deaths of a mother and daughter on the Pinnacle Lake Trail in Snohomish County are not likely among the murders committed by a prolific serial killer who committed suicide in an Alaska jail last year, according to the FBI.
FBI officials said the deaths of Mary Cooper and her daughter, Susanna Stodden on July 11, 2006 remain unsolved and local authorities are still asking the public’s help in solving them.
On Monday, the FBI released a timeline of activities of confessed serial killer and bank robber Israel Keyes, believed to have killed at least 11 people in several states. The FBI, investigating Keyes’ possible role in various unsolved killings, today issued a statement that it is “highly unlikely” he killed Cooper and Stodden.
The FBI documents say Keyes killed an unidentified couple in Washington state sometime between July 2001 and 2005.
Keyes also told investigators he committed two separate murders between 2005 and 2006, disposing of at least one of the bodies in Washington’s Crescent Lake, according to The Associated Press.
When he killed himself, the Keyes, 34, was awaiting a federal trial in the rape and strangulation murder of 18-year-old Samantha Koenig, who was abducted February 2012 from the Anchorage coffee stand where she worked.
Anyone with information on their deaths is asked to call the Snohomish County Sheriff’s Office tip line at (425) 388-3845 or Crime Stoppers of Puget Sound toll-free at 800-CRIME13 (800-274-6313).