Stephen B. McDonald, 56, of Rockville, MD passed away unexpectedly at his residence on Tuesday, September 26, 2017. Beloved son of Vincent C. McDonald and the late Ann Noel McDonald; brother of Vincent T. McDonald (Natalie), Kerry M. D’Ascoli (Gerry), John K. McDonald (Kristin); Uncle of Kelsey, Norah, Gerry, Noelle, Jack and Annie. He will also be remembered by his fiancee Manya Petropaki and devoted friend Marley. Friends may call at DeVol Funeral Home, 10 East Deer Park Drive, Gaithersburg, MD 20877 on Sunday, October 1, 2017 from 2 to 4 and 6 to 8 pm. Mass of Christian Burial will be offered at Shrine of St. Jude Catholic Church, 12701 Veirs Mill Road, Rockville, MD 20853 on Monday, October 2, 2017 at 11 am. Interment Gate of Heaven Cemetery. In lieu of flowers, memorial contributions may be made to Living Beyond Breast Cancer (www.LBBC.org), 40 Monument Road, Suite 104, Bala Cynwyd, PA 19004.