To be fair to itv they have said they did offer Caroline support, as they did ant.
The bottom line is though, all you can do is offer, you cannot force someone to take that support.
I really don't think blaming an employer, or a program, the police, the cps, her boyfriend, or even the media, is on, it's clear Caroline was sadly very very unwell, her friends have said she was sinking deeper and deeper into her depression.
None of this means she was not offered support, and via many different routes, nor does it even mean she wasn't receiving it.
Depression is a terrible illness, one that can be fatal, but unless you section someone, it's impossible to force them to receive help. The depression pre dated the incident. She was on anti depressants prior to this.
I think people are just looking for someone to blame for what occurred, sadly though what occurred whilst in the depths of depression is not an isolated or unique occurance, even with the best of intentions and support from everyone around.
Sometimes it isn't someone's fault. Sometimes there is no one to blame. Sometimes it really is about a mental illness. And none of us know the total facts here.
That's why we should be more open about mental illness. Clinical Depression can be fatal, it can be a very serious illness, with thoughts of total hopelessness and suicide being two of it's possible symptoms.