Mother stoned two sons to death
Psychiatrists for both the defence and prosecution agree that Deanna Laney was mentally ill when she carried out the horrific attacks in Texas last year, which also severely injured her third son.
Her lawyers say she is innocent by reason of insanity, but prosecutors will argue she knew she was doing wrong and should be found guilty of two counts of capital murder and one count of serious injury to a child. The prosecution is not seeking the death penalty.
