I feel terrible for his Dad. To have a son you love do this would be distressing. Without knowing his medical history, I wonder if perhaps better care could have prevented him from wanting to commit such atrocities. The mental health system in this country is well and truly fucked. I haven’t seen my shrink for years, mainly because of the cost. Who can afford $200 per consultation? Even if you can afford it, actually seeking and continuing treatment can be onerous for people suffering severe conditions.
Eta: Forgot to mention that in the video above, the killer’s father explains why he might have targeted women, so that question many have was answered pretty much.