David L. McDermott passed away on November 23, 2016. A visitation will be held in his honor on Thursday, December 1, 2016 at Three O'clock in the Afternoon followed by a funeral service at Four O'clock, both at Horan & McConaty Family Chapel, 9998 Grant Street in Thornton. Please leave memories of David and condolences for his family by signing the guestbook below.