20-year-old Fort Campbell Soldier Hans Samuel “Sam” Heitlauf was drinking with a group of friends at his house late Thursday night, including John Scott and JaMichael Moore. Witnesses say he became irritated with people being in his home and pulled a pistol from his waistband and pointed it at one of the victims before his friends disarmed him. The soldier, who is too young to be drinking, and too immature to be armed, then pulled an AR-style rifle at his guests and cocked it…