Illinois State Police Secure First-Degree Murder Charges for Suspects in Lake Mattoon Death Investigation

FOR IMMEDIATE RELEASE

July 31, 2026

 

 

PLAINFIELD – Illinois State Police (ISP) Division of Criminal Investigation announce that additional charges of First-Degree Murder (Class M Felony) have been filed against the two suspects previously charged in connection to the dismembered body of 38-year-old Dalewayne Turner of Plainfield, IL after his arm was found by a boater in Lake Mattoon on June 28, 2026.

After the initial discovery in Lake Mattoon, further searches of the lake and a residence in Plainfield revealed additional evidence. On July 2, 2026, the suspects, 26-year-old James Adams and 62-year-old Robin Turner, were both initially charged with Concealment of a Homicide (Class 3 Felony) and Dismembering a Human Body (Class X Felony).

ISP conducted an extensive and thorough investigation and on July 29, 2026, the Will County State’s Attorney’s Office approved an additional three counts of First-Degree Murder for both Adams and Turner. Adams and Turner remain in custody. There is no additional information. ​

Robin Turner, (F/62)

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James Adams (M/26)

The charges are not evidence against the defendants, and the defendants are presumed innocent until proven guilty beyond a reasonable doubt in a court of law.

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Illinois State Police

Public Information Office, Office of the Director

 

 

 

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