India, Jan. 13 -- The Bihar police have formed a Special Investigation Team (SIT) to probe the murder of IndiGo station manager at the Patna airport, Rupesh Kumar Singh who was shot dead Tuesday evening in one of the state capital's high-security areas, a top police officer said Wednesday.

According to Additional Director General (headquarters) Jitendra Kumar, an SIT under the leadership of city SP Vijay Tiwary has been constituted and Patna range IG Sanjay Singh is monitoring the case. A forensic team also collected evidence from the scene of the crime as well as the SUV in which Singh was shot.

Police said the killers seemed to be professional hit men.

The police have so far not been able to ascertain the identity of the killers or w...