Two theories of murder that they can present to the jury.
One is for an intentional killing, and one is for extreme indifference to human life where you do some kind of behavior that just doesn't care about the consequences. And they can charge either theory which is pretty common in different states, around the country.
You want to present both theories for murder and attempted murder to the jury, so you can get a conviction on either one, or both.
I don't fully understand -- just typing what I'm hearing.
But! After the most likely insanity defense is presented, the burden of proof is on the prosecution to prove that the defendant is sane!
Still I think JH's defense is in for a hard fought battle with the intensity of the planning involved. (IMO)