Lydia Mugambe told police her alleged victim had been "acting funny", Oxford Crown Court hears.
The BBC meets residents of Goma following the rebel takeover and those being forced by the M23 to leave camps.
After fleeing conflict, over 100 athletes from across Africa attend trials in Kenya in the hope of becoming part of the Refugee Olympic Team.
More than 200 civilians have been killed by paramilitaries, a rights group says.
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