In her interrogation on Jan 28, 2011, most of her answers to questions seemed logical in isolation, but when put all together, there were many contradictions and inconsistencies that indicate lack of rational thought. She was overdosed at the time she gave her statement. Her statements in the police interview were reflexive responses revealing spontaneous thoughts that came to her mind, some that were unconnected and irrational.
In speaking of the children in the present tense, could it be possible she didn't really know the children were dead. That is possible.
Was alcohol a major contributor? It's difficult to say what particular motivation moved her from thought or plan to action. Alcohol or drugs alone cannot explain her state of mind. On the other hand, the severity of her mental illness may be enough to explain it. In the real world, it's never completely clear. It's primarily her mental health problem, but the alcohol and drug use all certainly had a negative effect. I would certainly say that this event does not occur...
(objection)