Udhagamandalam: The exercise of capturing the rogue elephant ‘Shankar’, which killed three people in Gudalur division of forests in the Nilgiris in December last, continued for the fourth day on Tuesday but in vain. A dart was sent aiming at the rogue elephant by the team comprising veterinarians and forest officials, but it missed as the jumbo kept running, according to a forest official. “We were hopeful that the operation would succeed as the 40-year-old jumbo was located alone near Cherambadi in Pandalur range in Gudalur division. The herd of elephants which escorted the elephant in the past few days moved away from it”, said Vijayan, assistant conservator of forest, Gudalur division.