From Reuters on 12/15/03:
The army was led to Saddam's hideaway -- near a shepherd's hut in an orange grove on the banks of the Tigris River -- by information from a wealthy man from nearby Tikrit arrested in a raid Saturday.
Hickey declined to identify the source, saying only that he was from an important family in the town and that he had "a large waist line."
Although from Saddam's home town, the man was not from Saddam's tribe, Hickey added.
