San Francisco 49ers fans and the football world at large is reacting to the news of Charles Omenihu’s arrest. According to the Mercury News, was taken into custody on domestic violence charges. Nick Wagoner of ESPN relayed a brief statement from the Niners, who confirmed they were gathering more info on the arrest. The NFL Network’s Mike Garafolo shared details from the San Jose Police Department on the arrest. The reporter noted that Omenihu was alleged to have shoved his girlfriend to the ground during an argument. She said she was experiencing arm pain though no physical injuries were apparent.…