Illinois State Police announce arrest in Gallatin County murder

SHAWNEETOWN – The Illinois State Police (ISP) Division of Criminal Investigations (DCI) announce the arrest of 20-year-old Demetrius T. Walker of Mount Vernon, IL for First-Degree Murder (Class M Felony).

The arrest comes after a month-long investigation into the murder of 45-year-old Nathan Dobbs. On February 15, 2023, Dobbs was located deceased in the 100 block of McClernand Avenue in Shawneetown, Gallatin County. During the death investigation, DCI investigators developed Demetrius Walker as a person of interest. Walker was taken into custody on March 10, 2023 by Mt. Vernon Police Department on an unrelated arrest warrant. On March 12, 2023, the Gallatin County States Attorney approved a charge of First-Degree Murder against Walker while he was awaiting bond on the unrelated warrant.

Walker remains in custody at the Jefferson County Jail, awaiting extradition, with bond set at $5,000,000, 10 percent to apply. The investigation is open and ongoing.  No further information will be disseminated.

All persons are presumed innocent until proven guilty in a court of law.