Haridwar, Dec. 30 -- A special investigation team (SIT) has been constituted to probe into the shootout incident in Haridwar, in which gangster Vinay Tyagi was killed by two bike-borne assailants, while he was being taken under police escort for a court hearing on December 24, a senior police officer aware of the matter said. Tyagi succumbed to his injuries during treatment on December 27. According to, senior superintendent of police (SSP) Pramendra Dobhal, the SIT has been formed to investigate all aspects of the murder of Meerut resident Vinay Tyagi, who was shot dead by two accused with alleged criminal backgrounds. The assailants are residents of Udham Singh Nagar district. "The SIT, led by circle officer (city) Shishupal Singh Negi, includes three police officers, a head constable and a constable from the crime investigation unit. The team will examine all facts, evidence and circumstantial aspects related to the case. All concerned police stations have been directed to extend full cooperation so that the report can be submitted in a time-bound manner," SSP Dobhal said. At present, both accused - Sunny Yadav and Ajay Saini - are lodged in Roshanabad district jail and have been placed in separate barracks. Security has been tightened at the prison in view of the gang rivalry involved in the case, Roshanabad district jail superintendent Manoj Kumar Arya said. Notably, history-sheeter Vinay Tyagi sustained grievous bullet injuries on December 24 after he was shot by two bike-borne assailants at the Laksar flyover. He later succumbed to his injuries at the All India Institute of Medical Sciences (AIIMS), Rishikesh, on December 27. Tyagi had more than 50 criminal cases registered against him at various police stations in Uttar Pradesh and Uttarakhand. He was being taken to the assistant chief judicial magistrate's court for a routine hearing in police custody when Sunny Yadav and Ajay allegedly opened fire at close range on him at the Laksar flyover. The police personnel escorting him reportedly failed to retaliate or apprehend the assailants. On the same evening, SSP Dobhal suspended three police personnel, including a sub-inspector, who were part of the escort team, citing dereliction of duty. A preliminary probe conducted by superintendent of police (Rural) Shekhar Chandra Suyal found prima facie lapses on the part of the escort staff, following which they were placed under suspension with immediate effect....