Core 10 have officially recruited guitarist/backing vocalist Mark Richey (Red Line Tragedy). The band commented: “Hey all, We are proud to announce. Mark Richey from Red line tragedy. Is now the newest member/working with C10. On guitars/ and backing vocals. His experience as a singer/songwriter/guitar player. Stand alone. Check out his music, beyond us. https://youtu.be/zZI5MlWNXLk…