. >> reporter: i spoke with jeffrey kassal's roommate. he says he was upset about something last night but he's not sure what it was. he says it was a dangerous situation and deputies had no choice but to shoot. john martin visibly disturbed when we spoke with him wednesday morning. shaken by the sudden loss of his roommate, 27-year-old jeffrey kassal. >> he was mad at something and his way. >> reporter: the problems started tuesday night when he became agitated for some reason. kassal grabbed his gun and began walking around the parking lot here at the apartments screaming and waving it around. >> i called 911. as i turned around, all of the police were coming in. >> reporter: when deputies arrived, they tried to get him to put the weapon down. instead, investigators say he approached them aggressively and pointed the gun. that's when they fired. one witness described what he saw. >> i was sleeping in my bed and i woke up hearing put it down. and i looked outside and just five shots. >> they were in fear of their safety and the safety of