(10m24s; from a reputable documentary, despite the blue-white Windows Movie Maker splash screen somebody put in) David Reimer (22 August 1965 – 4 May 2004) was a Canadian man who was born as a healthy boy, but was sexually reassigned and raised as female after his penis was inadvertently destroyed during circumcision. Psychologist John Money oversaw the case and reported the reassignment as successful, as evidence that gender identity is primarily learned. Milton Diamond later reported that Reimer never identified as female, and that he began living as male at age 14. Reimer later went public with his story to discourage similar medical practices. He committed suicide at the age of 38.

On the The Weakerthans album Reunion Tour a song entitled "Hymn of the Medical Oddity" was inspired by the story of David Reimer.

--from http://en.wikipedia.org/wiki/David_Reimer

for more:
http://www.youtube.com/watch?v=pZNjX5j6dNQ
http://slate.com/id/2101678/