A Baltimore man will be spending the rest of his life in prison. James Sweeney, 36, was sentenced on Monday for conspiring to participate in a violent racketeering enterprise known as "Dead Man, Incorporated" (DMI), according to the US Attorney's Office for Maryland.

The sentence was imposed by US District Court Judge Marcia Crone, for the Eastern District of Texas, where Sweeney is serving a 30-year sentence for pleading guilty in 1996 to a 2nd-degree murder charge from Maryland. As part of his Maryland plea agreement and at the conclusion of the sentencing, federal prosecutors in Texas dismissed an indictment charging Sweeney with the murder of an inmate at a federal prison in Beaumont, Texas.

The US Attorney's Office for Maryland says, in 2000, Sweeney was one of the founders and the "Supreme D" of "Dead Man, Incorporated," which was a prison gang in Maryland. In 2006, he began recruiting members outside of prison, including women. He admitted that prior to his transfer to federal custody, and when he was incarcerated in Maryland, he oversaw the activities of DMI, says the US Attorney's Office for Maryland.

In order to make money for the gang and enable white prisoners to retaliate against black gangs and cliques, Sweeney announced that DMI would available to do "hits."

Federal prosecutors say Sweeney also participated in the smuggling of drugs into prison, such as heroin, powder and crack cocaine, and prescription medications.

The US Attorney's Office for Maryland also announced that Perry Roark, whose also known as "Pops," "Slim," and "Saho the Ghost," previously pleaded guilty and was sentenced to life in prison for the racketeering conspiracy. Roark, 42, had been the "Supreme Commander" of DMI since it was created as a prison gang in 2000 in Maryland.