Some tweets from a Pittsburgh TV reporter:
Bob Mayo
@BMayo_WTAE
The defense will have 24 hours to notify whether he will invoke a mental health defense. 12 hours after that, an envelope will be presented to the prosecution.
Then by 1pm Sunday, the defense will respond to the prosecution. This apparently involves mental health reports.
The judge would like to convene for the eligibility for death penalty phase as soon as reasonable. The prosecution suggests Monday, the 26th.
Defense has to notify prosecution and court by 1pm tomorrow of any mitigating factors it may present in the penalty phase.