There is no Fred Buuer in Harry Potter. You may be thinking of Fred Weasley, twin brother of George Wealsey and older brother to Ron. Fred Weasley dies in the end of the seventh book. He died at age 20 by an explosion caused by death eater, Augustus Rookwood while fighting alongside his older brother Percy inside the Hogwarts castle.
Fred Berry died on October 21, 2003 at the age of 52.
Fred Thomas - third baseman - died in 1986.
He did not die, he still lives.
He died from pneumonia.
Fred Stuhr died on October 26, 1997, in Pasadena, California, USA of automobile accident.
No, he did not die.
Fred and George do not both die only Fred dies.
Fred Hollow died on the 10 of February 1993, from cancer.
Fred Earle died in 1915.
Fred Haggar died in 1913.
Fred Goebel died in 1964.
Fred Csasznik died in 1985.
Fred Klaus died in 2005.
Fred Forbát died in 1972.
Fred Brocklander died in 2009.
Fred Welman died in 1931.
Fred Kinghorn died in 1971.