New Delhi, Sep 19 : The prime suspect -- Harmeet Singh -- in the murder of former Jammu and Kashmir Legislative Council member Trilochan Singh Wazir was arrested by the sleuths of the Delhi Police's Special Cell in Jammu, a senior police official said here on Sunday. Wazir, 67, was found dead inside a washroom of a flat at Basai Darapur here in the national capital on September 9. Earlier, the two other accused, identified as Balbir Singh, 67, hailing from Preet Nagar in Gandhi Nagar, Jammu and Rajender Chaudhary, 33, from village Gagore in Sambha, Jammu, were arrested by the police on September 15 and produced before a Delhi Court which sent them to 7 days of police custody. According to the police, Rajender Chaudhary had revealed during the interrogation that Wazir was shot dead on September 3 and four more people were present at the time of the incident. A police official informed that former NC leader, Wazir, was also given sedatives before being killed. Wazir had arrived in Delhi on September 1 and was staying with his acquaintance Harpreet Singh and his friend Harmeet Singh, a native of Jammu, at their rented flat in the Basai Darapur area. Wazir was scheduled to leave for Canada in two days on September 3, but, as he went missing on September 2, his family contacted Jammu Police who requested their Delhi counterparts to check on the missing man. Six days later, on September 9, his body was found in a highly decomposed state. After this several teams were formed and search operations were carried out in Delhi, Punjab, Haryana, and Jammu, and Kashmir to nab the suspects. The fourth suspect Harpreet Singh is still at large and raids are being carried out to nab him. /IANS