WAHPETON, N.D. (AP) — The North Dakota State College of Science is seeking more help from the state crime bureaus in North Dakota and Minnesota as campus police continue investigating the death of a student.

The college has issued a statement saying it’s the “appropriate next step” in the investigation into the death of 20-year-old Andrew Sadek. He disappeared last May and his body was found in the Red River in late June. An autopsy concluded he died of a gunshot wound to the head.

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Sadek was working for a regional drug task force as a confidential informant a few months before he died. His mother, Tammy Sadek, believes he was murdered.

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An independent state review concluded that the drug task force handled its dealings with Sadek properly.

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