NEW : A first and final suspect has turned himself in , police say . Student government , religious groups plan prayer vigils for students . one students killed , Two wounded Tuesday several hours , officials say . `` It does not seem at this time that it was a random act , '' he said , but police are `` unsure of the precise motive . '' Shooting prompted lockdown at University of Central Arkansas in Conway .
NEW : A first and final suspect has turned himself in , police say . Student government , religious groups plan prayer vigils for students . one students killed , Two wounded Tuesday several hours , officials say . Shooting prompted lockdown at University of Central Arkansas in Conway .