Really not comfortable with serious mental health problems from childhood being characterised as “attention seeking”.
It was stated in that documentary that Caroline was known to have mental health problems from when she was very young especially when relationships broke down which to me as an untrained person sounds like bpd.
Her mum explained at length in that documentary that Caroline did seek support for her mh, but despite her struggles, she was resistant to formal diagnosis and treatment because she was afraid of the information becoming public and being "known for that" and given the toxic press coverage she received, you can understand this to a degree.
It’s all very well to blame her mum but mh issues were not picked up at school in those days the same way they are today, and her family did always try to support Caroline to seek help once her issues became apparent, but once they are eighteen, you can do very little without the patient’s consent. It’s not always so easy as many parents on Mumsnet know.
Violence is always unacceptable but there seems to be an ongoing narrative on sm that serious mh illness offers no mitigation whatsoever but nonetheless people who suffer from these serious conditions don’t ask to have them! Mental illness symptoms that accompany bpd, schizophrenia, bipolar, all of which can lead to impulsivity and disregulation of mood, can start to manifest themselves during adolescence and it’s not that person’s fault!