News and Press Releases

Meth Distributor Sent To Federal Prison

January 18, 2012

Contact: Peter Deegan

A Sioux City man was sentenced January 17, 2012, to over seven years in federal prison for conspiring to distribute methamphetamine and possessing methamphetamine with the intent to distribute.

Kory Mammen, age 41, of Sioux City, Iowa, received his prison term after a August 30, 2011, guilty plea to conspiracy to distribute and possess methamphetamine.
Information provided by the United States at the sentencing and change of plea hearings revealed that during the conspiracy, from May 2010 through February 3, 2011, Mammen participated in the distribution of at least one and one-half pounds of methamphetamine. Mammen was previously convicted of a federal felony drug offense in March, 2001 in the Northern District of Iowa.
Mammen was sentenced in Sioux City by United States District Court Judge Mark W. Bennett. Mammen was sentenced to 87 months’ imprisonment. A special assessment of $100 was imposed. He must also serve a eight-year term of supervised release after the prison term. There is no parole in the federal system. Mammen is being held in the United States Marshal’s custody until he can be transported to a federal prison.

Court file information is available at The case file number is 11-4034.

This case was investigated by special agents of the Bureau of Alcohol, Tobacco, Firearms, and Explosives, the Sioux City, Iowa Police Department; and the Tri-State Drug Task Force based in Sioux City, Iowa, that consists of law enforcement personnel from the Drug Enforcement Administration; Sioux City, Iowa, Police Department; U.S. Immigration and Customs Enforcement; Woodbury County Sheriff’s Office; and South Sioux City, Nebraska, Police Department. Nebraska State Patrol; Iowa National Guard; Iowa Division of Narcotics Enforcement; United States Marshals Service; South Dakota Division of Criminal Investigation; and Woodbury County Attorney’s Office. The case was prosecuted by Assistant United States Attorney Forde Fairchild.



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