My first kill in DayZ SA came about 15 hours into playing the game. I was at the NWAF searching for loot during the night time, I had just left the south barracks and was making way across the AF to the firestation, when I could hear shots ring out from the northern end of the AF were the tents are located. I quickly ducked into the fire station and moved up the tower in the firestation to see if I could see anyone and plan my route around them, lone behold I get to the top and a server hopper spawns in. I tell him to drop his weapon or I will kill him. He promptly pulls out his pistol. This is followed by me putting two SKS rounds into his face. The guy had an M4 with all of the attachments in pristine condition, 6 med bags, 3 ammo boxes, and some assorted food and water. Was not thrilled with having to kill him, but he left me no choice. I took his gun, one ammo box, 1 med bag and the food and moved off. Have not run accross another player since then.