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Press Release

Sioux City Couple To Federal Prison For Meth Conspiracy

For Immediate Release
U.S. Attorney's Office, Northern District of Iowa

A Sioux City couple who conspired to distribute methamphetamine were sentenced on March 27 and 28, 2013.

Mavis Juarez, 56, and William Sun, 50, both from Sioux City, Iowa, received the prison terms after November 26, 2012, guilty pleas to one count of conspiracy to distribute methamphetamine and one count of distributing methamphetamine.

At the guilty pleas, Juarez and Sun each admitted their involvement in a conspiracy from 2011 through April 2012 that distributed more than 50 grams of actual (pure) methamphetamine in Sioux City, Iowa, area. Each also admitted to distributing more than 15 grams of actual (pure) methamphetamine over the course of four separate transactions. These distributions occurred within 1000 feet of Dale Street Park in Sioux City.

Juarez and Sun were sentenced in Sioux City by United States District Court Judge Donald E. O’Brien. Juarez was sentenced to 90 months’ imprisonment and Sun was sentenced to 120 months’ imprisonment. A special assessment of $200 was imposed for each of them. They each must also serve a six-year term of supervised release after the prison term. There is no parole in the federal system.

Juarez and Sun are is being held in the United States Marshal’s custody until they can be transported to a federal prison.

The case was prosecuted by Assistant United States Attorney Shawn S. Wehde and investigated by 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; Homeland Security Investigations; Woodbury County Sheriff’s Office; 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.

Court file information is available at The case file number is 12-4061.

Updated February 19, 2015