Stunning development .... the person the LAPD claimed brutally beat a San Francisco Giants fan has been exonerated ... and two new suspects have reportedly been arrested.The L.A. Times is reporting ... Giovanni Ramirez is now officially off the hook for the beating of Bryan Stow outside Dodger Stadium on opening day. The LAPD police chief held a news conference, saying he was "confident" they had their man -- i.e., Ramirez.TMZ then posted several stories ...