Inmate William Lee Terrell Could Have Sentence Doubled After Attacking Prison Employee On 1/28/21 at 10:25 PM EST A Texas inmate who has served more than half of a 19-year federal prison sentence could soon be sentenced to up to 20 additional years for attacking a prison employee. William Lee Terrell, 44, was found guilty of attacking a Bureau of Prisons (BOP) employee on Tuesday, according to a Thursday news release from the Department of Justice. Acting U.S. Attorney for the Northern District of Texas Prerak Shah announced that a jury convicted Terrell of assault of a federal officer causing bodily injury, following deliberations that lasted a little over an hour.