Please answer the following question: The answer to the question: What is the full name of the person that Montana takes the place of? is inside the article: On 6 September 1950, an isolated and exhausted platoon of the 24th Infantry Division is cut off. In addition to losing radio contact, the platoon is harassed by unseen North Korean infiltrators who silently kill the Americans and take their weapons. Platoon leader Lieutenant Benson has only vague instructions to reach a certain hill to link up with American forces. The patrol stops a jeep driven by Staff Sergeant "Montana" (Aldo Ray) and shell shocked passenger "the Colonel" (Robert Keith) from the First Cavalry Division. The Colonel is unable to speak and is tied to his seat. After the Battle of the Nakdong River, where "our men fell like rain", the tough experienced Montana decided he and his Colonel, whom he treats like his father, have had enough of the war. Benson commandeers their jeep for his platoon's equipment and the battle-fatigued Corporal Zwickley. The platoon makes its way towards the hill. Montana disobeys Benson by instinctively shooting a surrendering North Korean sniper, who turns out to have a concealed weapon inside his hat. Sergeant Killian is killed while covering the rear after absentmindedly filling his helmet net with flowers. Montana takes his place and feigns fatigue, luring the infiltrators into the open, where he kills them. The cynical Montana transforms the platoon back into a military formation while also curing Zwickley's neurosis by slapping him around. The platoon successfully carries on through sniper attack, artillery barrage, and land mines during which Platoon Sergeant Lewis panics and is killed., can you guess it ?
A:
Sergeant Killian