We've seen Light completely manipulating the robber in the bus-accident case (in which he figured out the identity of the FBI stalker). At the end, though the robber died, but everything went according to the book or in other words the robber was completely manipulated.
So my question is, is it possible for Light to gain absolute obedience over the victim without killing him? If so, why doesn't he utilizes this power?
One possible way to gain absolute obedience is to write a task for the person and make the person's death to occur after a long period (say fifty years)