DERA ISMAIL KHAN: Suspected Islamic militants killed a tribal elder in South Waziristan on Sunday, an intelligence official said, in the latest attack against a tribesman suspected of collaboration with authorities in the hunt for insurgents. Malik Dalai was killed in a drive-by shooting near Wana, the area intelligence official said on condition of anonymity. Dalai, 40s, was walking home from a bazaar in Wana when masked attackers opened fire from assault rifles, killing him instantly. No one claimed responsibility for the attack.