The story of a white man dragged off a bicycle and killed while riding in the Igbo country has been told in different ways, even in Chinua Achebe's "Things Fall Apart". The man, a doctor named Stewart, was actually killed due to mistaken identity during resistance to the British.
The incident happened in November 1905, in Mbaise, while Dr. Stewart was attempting to catch up with a convoy of colonial troops from Owere to Calabar by bicycle. He was captured and paraded through several areas and finally killed in the Afo market of Onicha Amairi, his body never found.