If $1M is offered today, it would make sense for his assistant to wait a week - it will be $10M then. Especially if Chris Dorner kills again. This money comes from the public treasury, so it's essentially free.
Someone who is more cynical than me might even say that LAPD already has Chris Dorner's body in the freezer, and the $1M offer is just an under the table transfer of public money to important people. But of course even a thought of corruption anywhere in LA would be laughable.
They would have to be more cynical and poor readers. It’s arrest (and conviction — FOX blows it again), not just pointing them to a dead body.