Jay Cook & Tanya Van Cuylenborg Murders

On November 18, 1987, 21 year-old Jay Cook and 18 year-old Tanya Van Cuylenborg left Saanich, BC, Canada, traveling in Cook’s family van, a bronze 1977 Ford Club wagon, to Genesco Heating, a company in Seattle. Cook and Van Cuylenborg planned on picking up a part for Cook’s father, and return the next day to Canada via I-5. They took the ferry from Victoria to Port Angeles, arriving around 4 p.m. There last known whereabouts were when they purchased a ticket at 10:16 p.m. in Bremerton for the Seattle ferry. Neither Cook nor Van Cuylenborg were seen or heard from again.

On November 24, 1987 Tanya’s partially clothed body was found in Skagit County in a ditch in a wooded area off Parson’s Creek Road between Old Hwy 99 and Prairie Road. On November 25, 1987 Cook’s van was located in Whatcom County locked up and abandoned in a Blue Diamond parking lot near State and Holly Streets in Bellingham. On November 26, 1987 Jay Cook’s body was found in Snohomish County along Crescent Lake Road, near High Bridge Road, on the Snoqualmie River, which is approximately three-quarters mile west of the old Monroe State Reformatory’s Honor Farm.

Detectives from the Snohomish County Sheriff’s Office and the Skagit County Sheriff’s Office are seeking the public’s help in identifying a suspect in a 1987 double homicide cold case.

Using DNA phenotyping to generate a composite of the male suspect, detectives hope the public can provide new tips and information that will lead to the identification of the perpetrator.

Attached the composite of the suspect at 25, 45 and 65 years old.

Family members and friends are offering a reward up to $50,000 to anyone who can provide information leading to the positive identification of the suspect through a DNA match.

If you, or anyone you know, has information related to this case or can identify a possible person of interest, please call either the Snohomish County Sheriff’s Office information line 1-425-388-3845, the Saanich Police information line at 1-888-980-1919 or to remain anonymous call Greater Victoria Crime Stoppers at 1-800-222-TIPS(8477).