SAN ANTONIO -

A 45-year-old Oklahoma man admitted to his role in the robbery of the Lee Michaels Jewelry Store, according to U.S. attorneys.

Appearing before a U.S. Magistrate Judge on Thursday morning, Johnny Kirk pleaded guilty to one count of aiding and abetting the transportation of stolen goods, and one count of aiding and abetting the interference with commerce by threats and violence.

By pleading guilty, Kirk admitted that on March 24, 2010, he robbed the Lee Michaels Jewelry Store located in North Star Mall in San Antonio, in which authorities said an estimated $2.3 million worth of merchandise was stolen.

On Oct. 7, officials said 47-year-old Marvin Steel of Oklahoma City was sentenced to 20 years in federal prison and ordered to pay $1,174,134 restitution after pleading guilty to one count each of aiding and abetting the transportation of stolen goods, aiding and abetting the interference with commerce by threats and violence, and aiding and abetting the use and carrying of a firearm during a crime of violence.

Several months following the robbery, the investigation turned to Oklahoma when a Rolex watch stolen during the heist was sold, according to U.S. attorneys.

Authorities subsequently executed several search warrants in Oklahoma, including a search warrant at Steele's home and a search warrant at the home of Steele's brother.

Agents said they recovered Rolex watches and various pieces of jewelry, valued at approximately $800,000, stolen from Lee Michaels Jewelry Store in San Antonio, as well as a blue laundry bag identical to those used during the robbery.

Kirk remains in federal custody pending sentencing, which U.S. attorneys said is scheduled for March 3, 2014, before a Senior U.S. District Judge.