Not sure if I'd believe that but this is an interesting read:
There has been speculation regarding the meaning behind the song's lyrics. Some believe the lyrics are about a suicidal murderer hunted by demons,[4] or depict events just preceding an execution, pointing to Albert Camus's novel, The Stranger in which a young man confesses to an impulsive murder and has an epiphany before he is executed, as probable inspiration. There are also parallels with Poem VIII in A.E. Housman's A Shropshire Lad. Some believe the lyrics were only written to fit with the music, and have no meaning; Kenny Everett quoted Mercury as claiming the lyrics were simply "random rhyming nonsense."[4] Mercury was evasive when asked about the meaning. Unlike the other members of Queen, who often talked about the inspiration behind songs they had written, Mercury disliked analyzing his own material, and preferred listeners to construct their own interpretations.[citation needed] What is known is that the song had a personal connection for Mercury, which was confirmed by the band's other members. Following the single's release, Mercury was quoted as saying:
“ It's one of those songs which has such a fantasy feel about it. I think people should just listen to it, think about it, and then make up their own minds as to what it says to them...'Bohemian Rhapsody' didn't just come out of thin air. I did a bit of research although it was tongue-in-cheek and mock opera. Why not?[5] ”
However when the band released a Greatest Hits cassette in Iran, a leaflet in Persian was included with translation and explanations. There Queen states that "Bohemian Rhapsody" is about a young man who has accidentally killed someone and, like Faust, sold his soul to the devil. On the night before his execution he calls for God in Arabic, "Bismillah" (Basmala), and with the help of angels regains his soul from Shaitan.[6]The song is of six sections: introduction, ballad, guitar solo, opera, rock and an outro. This format, with abrupt changes in style, tone, and tempo, was unusual to rock music. An embryonic version of this style was done by Queen themselves in "My Fairy King".
http://en.wikipedia.org/wiki/Bohemian_Rhapsody