Already serving an 18-year prison sentence for his involvement in killing a Mt. Leo man last year, a Coffee County teen has been sentenced for attacking a fellow inmate at Warren County Jail.The teen, Malik L. Scott, 18, entered a guilty plea to the charge of simple assault and was directed by Circuit Court Judge Bart Stanley to serve 75 percent of an 11-month, 29-day sentence. The term, however, was directed to be served concurrently, meaning it will not actually add to the 18-year sentence Scott is presently serving.