Gregory D. Demos, age 67 of Monroe passed away August 2, 2021 in his home. He was the beloved husband of the late Madge Simmonds Demos. Born in Norwalk, he was the son of the late Dino and Angel Vlachou Demos. Greg was a configuration engineer throughout most of his career. He is survived by his brothers, George Demetriades and Harry Demos. Friends may greet his family Monday at 11:30a.m., in the Redgate-Hennessy Funeral Home, Main Street and Gorham Place, Trumbull. A prayer service will begin at 12 Noon, in the funeral home. Interment will be private in Gate of Heaven Cemetery, Trumbull. In lieu of flowers, please make a contribution in his memory to The Tunnel to Towers Foundation (www.t2t.org) or to The USO (www.uso.org). To send online condolences please visit www.redgatehennessy.com