Michael passed away on August 30, 2015. Michael is survived by his children Sarah Grabau, Kati Cunliffe; siblings Gary Grabau, Karen Walters, Danny Grabau; nephews Matthew Grabau, Brandon Grabau; and niece Christina Grabau. Michael is preceeded in death by his parents The late Walter F. Grabau and the late Millie C. Grabau. Memorial Service will be held for Michael on Saturday, September 5, 2015, 11AM at Horan & McConaty Family Chapel, 9998 Grant Street, Thornton, CO.