One of Penn Valley’s favorite sons is coming home. U.S. Army Spc. Brandon Walden, a 20-year-old Penn Valley native who suffered life-threatening gunshot wounds after being attacked July 3 by an Afghan man wearing an Afghan National Security Forces uniform, is slated to return to western Nevada County Tuesday. Walden and his mother Laura Cummins, who has been away from her Penn Valley home since rushing to her son’s bedside in July, are scheduled to arrive at the Sacramento International Airport at 1 p.m. on United Airlines fight 1191. Western Nevada County residents, who have contributed to a swell of …