SIOUX CITY — A Sioux City man arrested in connection with a fatal shooting has pleaded not guilty to federal firearms and drug charges.
Liborio Martinez-Rubio on Tuesday waived his personal appearance for his arraignment in U.S. District Court in Sioux City and entered a written not guilty plea to single counts of conspiracy to distribute a controlled substance, possession with intent to distribute a controlled substance, possession of a firearm in furtherance of a drug trafficking crime and felon in possession of a firearm.
His trial was scheduled for July 2.
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Martinez-Rubio, 60, was arrested Jan. 11, hours after Javier Cheron, 26, of Sioux City, arrived at Mercy Medical Center with a single gunshot wound to the chest and died.
Law enforcement officers determined the shooting likely occurred at a residence at 1609 Jones St., where police found six handguns. Martinez-Rubio admitted that some of them belonged to him, according to documents filed in Woodbury County District Court. The investigation discovered that two of the guns were stolen and one of them had been among 79 guns stolen in Lincoln, Nebraska, in 2007.
In addition to the weapons found at the Jones Street home, police found packaged methamphetamine and marijuana, digital scales and approximately $130,000 in cash.
Martinez-Rubio was initially faced drug and weapons charges in Woodbury County District Court, but those charges were dismissed once he was indicted in federal court.