Nairobi, Kenya (CNN) -- As they strolled through Westgate Mall, guns strapped to their torsos, the attackers chatted on their cell phones while they sprayed bullets at terrified shoppers.
Ruthless and nonchalant, they randomly gunned down shoppers at the upscale mall in the Kenyan capital.
At one point, they took turns to pray, removing shoes to perform the ritual washing in a room stacked with boxes. They bowed down in Islamic prayer, taking a break from incessant gunfire.
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