I think everyone who plays DayZ knows the feeling when someone kills you after a long journey and a ton of supplies and weapons. I've been killed a lot for no reason. But now I'm at that point in the game where I know how to survive & who to trust. I actually try to help out fresh spawns sometimes with some food or water, but I only do that after I checked their inventory since they could have a gun in their backpack. But yeah, you can't change the way other people play this game. It might be frustrating sometimes but we can't do anything about it, so just move on and learn from it!