A Sudanese pro-democracy protester was shot dead Thursday during rallies against a military coup, taking the toll of those killed in crackdowns since the army takeover to 115, medics said. The pro-democracy Central Committee of Sudan Doctors said the protester was killed in Omdurman, across the Nile river from the capital Khartoum. The latest in near-weekly protests against the coup comes as Sudan reels from the impact of deadly ethnic clashes in a land dispute that broke out on July 11 in southern Blue Nile state, in which 105 people were killed and 291 were wounded. The clashes in Blue Nile …