Is the death penalty an option here?
Idaho does have the death penalty for first degree murder if certain aggravating factors are present.
From Idaho Code 18-4505:
9) The following are statutory aggravating circumstances, at least one (1) of which must be found to exist beyond a reasonable doubt before a sentence of death can be imposed:
(a) The defendant was previously convicted of another murder.
(b) At the time the murder was committed the defendant also committed another murder.
(c) The defendant knowingly created a great risk of death to many persons.
(d) The murder was committed for remuneration or the promise of remuneration or the defendant employed another to commit the murder for remuneration or the promise of remuneration.
(e) The murder was especially heinous, atrocious or cruel, manifesting exceptional depravity.
(f) By the murder, or circumstances surrounding its commission, the defendant exhibited utter disregard for human life.
(g) The murder was committed in the perpetration of, or attempt to perpetrate, arson, rape, robbery, burglary, kidnapping or mayhem and the defendant killed, intended a killing, or acted with reckless indifference to human life.
(h) The murder was committed in the perpetration of, or attempt to perpetrate, an infamous crime against nature, lewd and lascivious conduct with a minor, sexual abuse of a child under sixteen (16) years of age, ritualized abuse of a child, sexual exploitation of a child, sexual battery of a minor child sixteen (16) or seventeen (17) years of age, or forcible sexual penetration by use of a foreign object, and the defendant killed, intended a killing, or acted with reckless indifference to human life.
(i) The defendant, by his conduct, whether such conduct was before, during or after the commission of the murder at hand, has exhibited a propensity to commit murder which will probably constitute a continuing threat to society.
(j) The murder was committed against a former or present peace officer, executive officer, officer of the court, judicial officer or prosecuting attorney because of the exercise of official duty or because of the victim's former or present official status.
(k) The murder was committed against a witness or potential witness in a criminal or civil legal proceeding because of such proceeding.