I don't think his killing spree is evidence of him being a psychopath. He did kill in cold blood because he wanted to and may have enjoyed doing it, but that can be put down to a 'single incident' where as, do we believe he would become a serial killer in the public domain had he been set free? No one knows and predicting is not a science.
He is enjoying his manipulation and adulation he has acquired- all swings and roundabouts. He knows he is guilty- he just doesn't want to be punished for it. That was the reason I mentioned the child with sweets.
He displayed all the characteristics of a psychopath before he killed his family, and he still hasn’t shown any remorse...so that’s further evidence he’s devoid of normal emotions. So no, he will never be released.
After he was convicted, then appealed, his sentence was increased to Life Without Parole. LWP replaced hanging, which proves how convinced the Home Secretary knew how dangerous JB is. He proved he’s capable of killing his own family for greed, yet still denies it. That “one-off” as you describe it wasn’t a minor impulsive moment of anger where he’d punched his father, he’d been plotting and planning to murder his family for over a year. Who’s to say he wouldn’t do the same again? Or seek revenge on those he has an irrational hate against?
He isn’t just locked up for the safety of others, he’s locked up because what he did was evil beyond belief. Do you think the parole board (which he has no access to) would say “OK, Jeremy, you can go now. We’ve all forgotten how you shot dead your family and cut short their lives, robbed two children of having a life — we’ll let you enjoy the rest of YOUR life — go and have fun and the taxpayer will support you while you do”...
As for him enjoying the “adulation” he gets, I don’t think he does. The adulation he gets is from a handful of misfits of society who he secretly despises because he knows they’re only in contact with him as they’re desperate, weird, and have to resort to someone like him because that’s the only attention they can get.