Mario Lemus was an individual who was crazed by the Red Marker on Aegis VII. Mario was a Miner, Unitologist, and part of Deakin Abbott's group. later until then, he killed a Female with a fire axe, and is arrested by the P.C.S.I. Security Force. When the outbreak occurred on the USG Ishimura, He was killed by the Necromorphs.