"And his mom was there and she had a big smile on her face, and tears in her eyes.Officers serving a search warrant at Yealu's west Los Angeles home Tuesday turned up hundreds of rounds of ammunition and weapons, including two assault rifles, a shotgun and two handguns, authorities said.Yealu had a license to work as a security guard starting in 2005 and as of last year had a license to carry a f" . . . . .