Bradley Manning's letter, entitled The Next Stage of My Life, was signed with a handwritten signature in the name of Chelsea Manning.
The letter was broadcast on NBC's Today show as Manning's lawyer revealed the soldier's desire to live life as a woman.
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The mogul has reportedly agreed to permanently leave the company he co-founded after a flood of sex abuse complaints.
A 20-year-old man who died in a triple stabbing outside Parsons Green Tube station has been named by police.
Capable of crossing the Atlantic in under three hours, Concorde flew at over twice the speed of sound, reaching altitudes of 60,000ft.