"They came and said: 'If you are Muslim, stand up. We've come to rescue you," said Elijah Lamau.
He said the Muslims left with their hands up, and then the gunmen shot two people.
The correspondent in Nairobi for the Economist, Daniel Howden told the BBC he spoke to one man with a Christian first name but a Muslim-sounding surname who managed to escape the attackers by putting his thumb over his first name on his ID.
September 21, 2013
BBC reports on the massacre in the upscale shopping mall in Nairobi, Kenya: