The Government of the Province of Ontario together with the sister of the late Sonya Nadine CYWINK are offering a reward in the amount of sixty thousand dollars ($60,000) for information leading to the arrest and conviction of the person(s) responsible for the murder of Sonya Nadine CYWINK, age 31 years.

Sonya’s remains were discovered on August 30th, 1994 at a native historical site known as the Southwold Earth Works located on the Iona Road in Southwold Township, Elgin County. This area is southwest of the City of London, Ontario. Sonya was last seen on August 25th, 1994 in the Dundas and Lyle Street area of London.

Investigators urge any person with information regarding the person(s) responsible for the death of Sonya CYWINK to immediately contact the Director of Criminal Investigation Services, Ontario Provincial Police at 1 888-310-1122 or (705) 329-6111, or their nearest police authority. Further information about this case is available on the OPP website at

Should you wish to remain anonymous, you may call Crime Stoppers at 1-800-222-TIPS (8477), where you may be eligible to receive a cash reward of up to $2,000.

This reward will be apportioned as deemed just by the Minister of Community Safety and Correctional Services for the Province of Ontario and the Commissioner of the Ontario Provincial Police.

Filed under: opp, sonya cywink