In the carnage, Sean Smith, a foreign service information management officer was shot dead.
Ambassador Stevens and his team made a desperate bid to flee by car to safety. But the vehicle came under heavy arms fire and was hit by a rocket, leaving it disabled and at the mercy of the mob.
Two marines attempted to aid Ambassador Stevens but were shot dead, according to CBS.
Graphic images taken at the scene show civilians making desperate attempts to pull the diplomat to safety. But their efforts were futile.
Al Jazeera TV today reported that Ambassador Stevens died of smoke inhalation, while the doctor who treated him said he died of severe asphyxiation, which caused stomach bleeding. He said Stevens had no other injuries.
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