Holmes on Homes star Frank Cozzolino's cause of death has been revealed. Cozzolino died on December 4 at age 56 after battling lymphoma, a type of blood cancer in the lymphatic system, according to his daughter. "My dad is loved by many. A man full of passion, empathy, brutal honesty and integrity," Cozzolino's daughter, Filomena, wrote via Instagram on Saturday, December 6. "He fought through the struggles of organ disease and was granted a second chance at life in 2017 through the gift of organ donation.