New York —

Luigi Mangione’s attorneys will present a psychiatric defense at his state murder trial this fall, arguing he killed UnitedHealthcare’s chief executive while experiencing an extreme emotional disturbance.

At a hearing Wednesday, Judge Gregory Carro said he planned to unseal records related to an affirmative defense available to New York state criminal defendants charged with murder, in which the accused admits to the charged conduct but argues they should not be held fully criminally liable because he or she acted while experiencing an extreme emotional disturbance.

A hearing in Mangione’s case earlier this month had been sealed at the defense’s request. The judge said he sealed information related to the defense because it would have been “very prejudicial” to Mangione if his attorneys decided not to move forward with the strategy.

Carro ordered the defense to turn over information related to the extreme emotional disturbance defense – including the name of their psychiatric expert – no later than Thursday.