None of us know - and probably never will - what went on in that marriage. Was she the abuser or the abused? I have no idea. The daughter witnessed her father abusing her mother on 3 occasions, quite violently too, so obviously he was capable of abuse. However, we don't know the circumstances surrounding these incidents... did he snap because she was abusing him, or was he simply being abusive?
Judging by her bizarre behaviour when talking to the emergency services and during her subsequent arrest - I feel that she is actually suffering from some form of age related mental decline. She appears to have lost touch with reality. The sheer horror of the whole thing seems not to have impressed itself on her mind - it's as if she was in another world, and I really do believe she is not in a normal state of mind. Was this due to years of abuse which has affected her mental stability, or is she suffering from dementia?
I watched a close family member decline with dementia and this person often showed complete indifference to the suffering of others, as if it was completely beyond their comprehension. And this was a person who had been a very caring and empathetic individual.
I think she needs psychiatric evaluation.