Douglas Cartelli. Has been a mainstay in Connecticut his entire life. From early days at Xavier High School to giving back to Connecticut through multiple charities and events. Douglas Cartelli. A Pro Boxer who brought Boxing and MMA (Mixed Martial Arts) to entire NEW level with his premiere fitness center. The Lions Den ( Not affiliated with Ken Shamrocks Lions Den) Douglas Cartelli. Who today is working to bring Connecticut a new level of entertainment and excitement with the NEW venue and N ...