Thousands of angry Hamas loyalists on Sunday marched at the funeral of a Muslim preacher who died in the custody of government interrogators, accusing the Palestinian Authority of killing the man and turning the ceremony into a rare show of defiance against PA President Mahmoud Abbas. The demonstration was an unusual sight in the West Bank, where Abbas' Palestinian Authority has become increasingly autocratic since his Hamas rivals seized power in the Gaza Strip in June. Since then, police have cracked down on protests perceived to challenge Abbas' rule. Some 3,000 Hamas loyalists crowded the village of Kobar, carrying the body of 44-year-old Majed Barghouti, who died in a lockup run by intelligence officials on Friday, a week after he was arrested. Hamas officials said they did not trust a government investigation announced by Abbas.