German authorities said Saturday that Jarrah attended Hamburg's Harburg Technical University, as did two other suspected hijackers.

CNN: Uncle calls hijack suspect 'innocent passenger'

The spokesman said agents found that the apartment, in the Harburg suburb of Hamburg, has been empty since February.

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Atta and a second suspect, Marwan Al-Shehhi, also studied in the city's Harburg Technical University, in Hamburg, German prosecutor's say.

CNN: suspect

"He was a big man, and he talked in a big voice, and he wanted that song out, " Ernie Harburg said.

BBC: NEWS | Entertainment | Over The Rainbow's enduring appeal

Our radio explanation also includes two bits from an old Tin Pan Alley song by Yip Harburg (who wrote the lyrics for the Wizard of Oz score) and Vernon Duke, called "April in Paris" played by the Count Basie Band.

NPR: Not All Seasons Are Created Equal

It remained for the 1939 MGM version to add the image of the rainbow to the iconography (courtesy of lyricist Yip Harburg), to make the whole story a Technicolor dream and, most significantly, to saturate the entire narrative in one of the most glorious scores (by Harburg and composer Harold Arlen) of any film or show.

WSJ: The Road Well-Traveled: Oz the Great and Powerful