Police said on Sunday that they have zeroed in on a suspect in the killing of an Amity University <g data-gr-id="11">student,</g> though the exact motive is yet to be ascertained. Superintendent of Police (City) Dinesh Yadav said: “We are yet to ascertain the motive of the murder of Rajaram Sandesh though police have confirmed report that suspected killer, who has been identified as Aman, a student of Bachelor in Tourism IInd year in the same university, had enmity with him.” Sandesh was shot dead on Saturday afternoon at his rented accommodation.