Some shocking editing here: Prof Kevin Browne stating the financial and social needs of the parent who stayed meant she sidelined her children; reference to mental illness without evidence and, in line with most poorly researched crime documentaries, interviews with the friends and family of everyone but the absent parent.
There are precious few crime documentaries that bother broadcasting the evidence of a criminals' upbringing but when one parent's commitment is scrutinised it's worth asking why the same show says nothing about the other parent.
An interesting perspective but the production team are clearly out of their depth, reducing matricide by her own child to entertainment.