In the latest saga over online gaming addiction in China, the parents of a 13-year-old Tianjin boy are suing the makers of World of Warcraft, blaming the game for the death of their son, according to the Chinese news agency Xinhua. The parents filed a suit against Blizzard Entertainment on Wednesday, saying their son jumped to his death while reenacting a scene from the game, the report said. The parents are backed by the anti-Internet addiction advocate Zhang Chunliang. Mr. Chunliang has spoken to 63 parents whose children have allegedly suffered from online gaming addiction and plans to file a class-action suit, according to the report.