David Keith Cunningham, Sr., 42, Great Falls, MT, passed away Monday, July 2, 2012, at local medical center of unknown causes.No services are planned; cremation will take place under the direction of Schnider Funeral Home.He is survived by his common law wife Michelle Simmons, of Great Falls, three sons, David Keith Cunningham, Jr., of Baltimore, MD, Darrius Isiah Cunningham of Greensborough, NC, David Elijah Cunningham of Thomasville, NC, an expected daughter Shyanne Faith Cunningham; brothers Alvin Cunninghamand Charles Cunningham , a sister Dawn Jones all of Baltimore, MD and a step son Xander J. Simmons of Great Falls.