In the deep forests in Norway, on a small farm on the side of an valley. Roar was being raised in a farming and gun loving family. His dad taught him everything about hunting and fishing. Roar adored his father even tho he got physical at times when Roar made a mistake. His Father wanted to go to Russia and shoot bears because it was not allowed in Norway. However the real reason he wanted to go to Russia was because he was afraid that child services would take Roar away.
They went to Russia and hid out in the woods and lived off hunting.
His dad got more and more paranoid as time went on and when the outbreak happened he got worse and worse.
One day Roar became a little ill and his dad got convinced that he was turning into an infected which was entirely wrong but his father thought it was best to shoot his kid but Roar felt that something was wrong and kept a close eye on his father and managed to run away before the father gathered his courage to shoot . Roar went running into the woods.
Since they where pretty close to the Chernarus. There is where he ended up.