An Atlanta homeless man risked his life to save all the animals of a local shelter after it caught fire. Running into the blaze, Keith Walker, 53, saved all the animals, six dogs and 10 cats, by carrying them to safety. Gracie Hamlin, the founder of the W-Underdogs shelter in Atlanta, Georgia, calls Walker her guardian angel. Hamlin told CNN that on Dec. 18, Walker was inside the building “pulling out the cats and dogs until they were all safe.” “I can’t thank [Walker] enough for saving my animals,” Hamlin said. “I’m still in disbelief, because I’ve been around a fire and I know how fast they flare up. He is my hero.” Walker, who has been homeless since the age of 13, admitted feeling fearful of the billowing smoke. “God put me there to save those animals,” Walker said. “My dog is my best friend, and I wouldn’t be here without him, so …