Madrid | 2004 | September 11 attacks | 2004 in music | 2004 Summer Olympics | United States presidential election, 2004 | Complutense University of Madrid | Canadian federal election, 2004 | Real Madrid C.F. | Autonomous University of Madrid | 2004 in film | Battlestar Galactica (2004 TV series) | Atlético Madrid | March of Dimes | 2004 in baseball | 2004 ATP Tour | 2004 IAAF World Indoor Championships | United States Senate elections, 2004 | March | United States House of Representatives elections, 2004 | Fredric March | 2004 in television | University of Madrid | Eurovision Song Contest 2004 | Earl of March | Australian federal election, 2004 | 2004 Indian Ocean earthquake and tsunami | Crash (2004 film) | Alberta general election, 2004 | 2004 in sports |
Brandon Mayfield was arrested May 6, 2004 on a material witness charge, on the basis of a fingerprint found after the 11 March 2004 Madrid attacks.