passed away on August 2, 2013 in Phoenix, AZ. He was born on February 7, 1940 in Ashtabula, OH to Salvadore and Jennie (DeGennaro) Dello. Cos grew up in Ashtabula. He graduated from St. John's High School in 1958, where he was named Herald of the Year. After high school, he graduated from Gannon University in Erie. He worked as Chief Medical Technologist for Walter O. Boswell Memorial Hospital in Sun City, AZ. After early retirement, he worked for America West Airlines. He was an avid enthusiast of computers. He created computer programs and taught private classes to senior citizens for years. He is survived by his wife of 40 years, Diane; his precious pets, Princess and MeMe; his sister June (Frank) Pugliese of Ashtabula and many nieces and nephews. He was preceded in death by his parents and niece Tammy Ann Pugliese. A Memorial Mass will be held on Friday, August 16, 2013, at 10:00 AM, at Sts. Simon and Jude Church, 6351 North 27th Ave., Phoenix, AZ. A Celebration of Life will be held in Ashtabula at a later date. In lieu of flowers, the family requests memorial donations be made to Caring Voice Coalition, 8249 Meadowbridge Road, Mechanicsville, VA23116 or Grace Hospice of Arizona, 2141 E. Broadway Dr., Suite 118, Tempe, AZ85282. He was always willing to give a helping hand to whoever needed one. He will be greatly missed.