Mats Steen, a Norwegian gamer, died of a degenerative muscular disease at the age of 25. His parents mourned what they thought had been a lonely and isolated life, when they star 　　Mats Steen, a Norwegian gamer, died of a degenerative muscular disease at the age of 25. His parents mourned what they thought had been a lonely and isolated life, when they started receiving messages from online friends around the world. 详情