18 U.S.C. § 1120 - Murder by escaped prisoners

(a) Definition.— 
In this section, Federal correctional institution and term of life imprisonment have the meanings stated in section 1118.

(b) Offense and Penalty.— 
A person, having escaped from a Federal correctional institution where the person was confined under a sentence for a term of life imprisonment, kills another shall be punished as provided in sections 1111 and 1112.