Three wild elephants, which were tailing a herd towards Kaziranga National Park, trampled to death one Baap Hazarika (70) and injured two others at Sial Chapori near Dergaon last night. The body of the deceased man was recovered this morning. Hazarika is the fifth victim in jumbo attacks which took place in the riverine areas along the Brahmaputra river this year. Meanwhile, the marauding jumbo herd, which had been driven away towards the national park, destroyed the Mohpora forest camp under Agaratoli range of KNP. There are no reports of any casualty. In another unrelated development, a leopard was killed this morning by unknown persons at Lahing Maskuri village in Boloma near Teok. According to reports reaching here, the wild cat had attacked Jadu Chutia, Dilip Chutia, Anil Chutia and Gopal Saikia. The police later received the news about the killing of the leopard and informed the Forest Division which recovered the carcass. As many as three leopards had already been killed in Teok area this year. In 2007, seven leopards were slain by humans in the district. The Forest Division rescued six cats and released them in the wilds.