According to people.com:
John McCain was a fighter pilot, the 2008 Republican nominee for President, a prisoner of war in Vietnam, and a maverick of the GOPwho often crossed party lines in the name of his country.
But he was also a beloved husband and father of seven. In the hours following his death on Saturday due to brain cancer, family members shared emotional messages.
The senator's wife of nearly four decades, Cindy, expressed her grief and gratitude.