Prosecution testimony was heard by the jury Tuesday afternoon. Among those to take the stand was Kaylen L. Butcher, who admits participation in the June 28 Stop-And-Go convenience store robbery.
Morgan maintains his innocence.
In his opening statement, defense lawyer Benjamin Sharp suggested that Butcher and co-defendant Brandon Dale Shelton are responsible for both robberies.
Both Butcher and Shelton recently entered guilty pleas in federal court.
Butcher, 19, pleaded guilty to robbery and carrying a firearm during a crime of violence. Shelton, 18, pleaded guilty to making a false statement. Both will be sentenced next year.
During cross-examination of Butcher, public defender Nikki Pierce attacked Butcher's credibility and attempted to link her to the crimes.
Assistant U.S. Attorney J. Gregory Bowman, the prosecutor in the case, said in his opening statement that the evidence will establish Morgan, 36, as the person responsible for the robberies.
Morgan is charged with six crimes by federal authorities in connection with the bank and convenience store robberies, including obstruction of commerce by robbery, bank robbery, two counts of use of a firearm in relation to a violent crime, and two counts of being a convicted felon in possession of a firearm.
Trial testimony continues Wednesday.
See Wednesday's issue of The Greeneville Sun for details of Tuesday's proceedings, including testimony by Butcher.