Doctors have upgraded the condition of a Giants fan who has recently shown increasing brain activity after a severe beating left him in a coma three months ago outside Dodger Stadium. Bryan Stow is now breathing without a ventilator, has moved his left arm and been able to intermittently follow some basic commands as physicians wean him off heavy sedatives. The medications have been used to avoid seizures. "He is far from out of the woods," Dr. Geoff Manley said. Stow had been in critical condition since the March 31 attack after the season opener between the rival Giants and Dodgers. His condition has been upgraded to serious.