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Midwest Murders – Part 3: Ryan Riddell and Mark Prasse

One winter night, Ryan Riddell and Mark Prasse experienced unexpected and overwhelming violence inside Mark Prasse’s home, which cost them their lives. Murders do not usually happen in small towns in the Midwest. It is hard to believe that Ryan Riddell had been the victim of a home invasion at his farmhouse just seven months before. Their family and friends are crying out for answers on this unsolved double murder which occurred in Chrisman IL. Who killed Ryan Riddell and Mark Prasse? There is a $25,000 Reward for the arrest and conviction of anyone responsible for their murders.  

Related Images

Ryan Riddell and Mark Prasse were found murdered seven months after the Home Invasion at Ryan Riddell’s residence. This double homicide is still unsolved. (Image Source)

Arnie Graves (Image provided by Angelique Graves)

Douglas County Chief Deputy Tommy Martin who was killed in the line-of-duty on June 21, 2007. (Image Source)

Terry Romine, Ryan’s Step Dad, Terry Romine with case file he organized on the unsolved murders of his son, Ryan Riddell and his best friend Mark Prasse

Sarintha Riddle Nelson, Ryan’s step-sister

Chicago Police Detective Timothy Nolan (Ret.) Detective Nolan started as a Chicago Police Officer in 1986 and was assigned to the south side, which is known for its significant gang crime. During his career, he was a member of the Chicago Police Department Gang Crimes Unit and a rifleman for the Hostage Barricade Terrorist Team. He was promoted to detective in 1996, where he was assigned to Area One Violent Crimes. He investigated all violent crimes but primarily homicides. He was also certified as a Fire Investigator and worked in the Bomb and Arson Section. He retired after a 30-year career.

Yusef Kareem Brown (Image Source)

William B Thompson (Image Source)

Dawn Coyne Trimble: Investigative Reporter/ Guest Host Dawn is a successful real estate broker with Keller Williams. She gives back to her community as a volunteer leader with Crime Stoppers at the local, state, national and international level:
Vice President: Champaign County, Illinois Crime Stoppers
Board Member: Illinois State Crime Stoppers Association
Regional Director/ Board Member: Crime Stoppers USA
Advisory Board Member: Crime Stoppers International

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