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Press Release

Pollock prisoners sentenced for assault

For Immediate Release
U.S. Attorney's Office, Western District of Louisiana

ALEXANDRIA, La. Acting U.S. Attorney Alexander C. Van Hook announced that three inmates at the U.S. Penitentiary in Pollock, La., were sentenced last week for the assault of another inmate that resulted in injuries requiring hospitalization and several surgeries.


Jason Dwight Mackenzie, 36, of Baltimore, Md., was sentenced Friday to 84 months in prison; Robert Shipp Jr., 32, of Tyler, Texas, was sentenced to 48 months in prison; and Calvin Skelton, 42, of Great Falls, Mont., was sentenced to 48 months in prison by U.S. District Judge Dee D. Drell on one count of assault resulting in serious bodily injury. They were also sentenced to three years of supervised release. According to evidence presented at the guilty pleas, the three inmates jumped a fourth inmate on October 21, 2015 while he was reading a newspaper in the common area of a cell block. The defendants punched and kicked him in the head, upper body and legs until they appeared winded and tired. Once a correctional officer approached, the defendants went back to their cells. The victim was taken to the prison infirmary then to a hospital where he underwent multiple surgeries to repair severe head injuries from the assault.


The FBI and the U.S. Bureau of Prisons investigated the case. Assistant U.S. Attorney Mike O’Mara prosecuted the case.

Updated May 31, 2017

Violent Crime