CENTENNIAL, Colo. (AP) — In the nearly eight months since James Holmes first shuffled into court with vacant eyes and reddish-orange hair, neither he nor his lawyers have said much about how he would plead to charges from the deadly Colorado movie theater shooting.

There have been plenty of hints, however. As his hair turned more natural-looking and his demeanor more even at court hearings, Holmes’ lawyers repeatedly raised questions about his mental health, including a recent revelation that he was held in a psychiatric ward for several days last fall, often in restraints, because he was considered a danger to himself.

If, as many expect, they enter a plea of not guilty by reason of insanity on his behalf Tuesday, it will clarify the court battle ahead: Was Holmes, 25, legally insane — unable to tell right from wrong — at the time of the shootings?