No one cares if a man beats a woman

He gets to walk around a free man. I can't tell people what he did. It fucked up my performance at work and I get no sympathy or understanding because of it. He should be in prison but he gets to walk free. He gets to move onto his next victim and I have to live with that guilt. He feels none and even his family know what he did but still stick by him. No one in real life encouraged me to report him to the police.