sebastiano quagliata and his wife , valbona lucaj , pleaded no contest to owning a dangerous dog causing death in the fatal mauling of craig sytsma of livonia , michigan , and agreed to 15 years in jail .
lucaj , a 46 , was attacked by two hundred-pound last july in metamora township , 45 miles northwest of detroit .
the father-of-three was bitten some eight times by two cane corsos while jogging in metamora township in july .