Winter Springs, FL - A Seminole County Sheriff's deputy resigned before being charged with battery after he allegedly punched a handcuffed suspect, officials said.The deputy, Michael O'Connor, resigned March 24 after he was caught on video threatening to kill a domestic violence suspect and then punching him in the face while he was in the back of a police cruiser.Read more www.orlandosentinel.com/news/breaking-news/os-seminole-deput