A hospital morgue worker shows the body of Sardar Mohammad, a senior member of the Karzai family's security team who killed Ahmad Wali Karzai the younger half-brother of Afghan President Hamid Karzai, in Kandahar July 12, 2011. The younger half-brother of Afghan President Hamid Karzai, one of the most powerful and controversial men in southern Afghanistan, was shot dead at his home on Tuesday by a senior and highly trusted bodyguard, officials said. REUTERS/Ahmad Nadeem

A hospital morgue worker stands over the body of Sardar Mohammad, a senior member of the Karzai family's security team who killed Ahmad Wali Karzai the younger half-brother of Afghan President Hamid Karzai, in Kandahar July 12, 2011.The younger half-brother of Afghan President Hamid Karzai, one of the most powerful and controversial men in southern Afghanistan, was shot dead at his home on Tuesday by a senior and highly trusted bodyguard, officials said.REUTERS/Ahmad Nadeem

The body of Sardar Mohammad, the killer of Afghan President Hamid Karzai's younger half-brother, Ahmad Wali Karzai, hangs on Charso square in Kandahar city July 12, 2011. Mohammad was shot dead by Karzai's bodyguards moments after opening fire and then hung in the square for 10-15 minutes, witnesses and officials said. Picture taken July 12, 2011. REUTERS/Stringer