On January 27 2011, an American man shot dead two Pakistani men. That much we know.
His name is Raymond Davis - but many in Pakistan question whether that is his real name. The US says he is an embassy official; unnamed US officials have claimed he is a CIA contractor.
The two men he shot were 18-year-old Mohammad Faheem and Faizan Haider, 23. Mr Davis says the men, who were riding a motorcycle, pulled over at his side at a traffic light and pointed a gun at him."

