There have been many reports recently about the strong anti-gay sentiment and legislative measures emerging in Uganda, such as this report today from Box Turtle Bulletin: Ugandan Parliament Takes Up Anti-Gay Bill, or Homosexuals Face Death Penalty in New Vision (Uganda), forwarded by email from Other Sheep. What I have not seen in any reports, is any reference to the story of the Ugandan Martyrs, which makes an ironic contrast to the current persecution.
Some years ago, I did a great deal of reading on African history, including one book on the colonial exploration and development of East Africa. From this book (The title of which I no longer recall) I remember very clearly, although you will not find the full story in the mainly sanitised abbreviated stories at the top of a Google search. The Ugandan martyrs are commemorated in the Church calendar on June 3rd each year, as the feast of Charles Lwangwa and companions.
This is the story as I read and remember it.