I just think that a situation like this should set alarm bells ringing to the police and the cps, this guy has watched the brutal murder of a Pup, then a cat, what next? A Baby? Is that when this sick piece of scum will get put away for life?
He's already on the slope, get him away from society before he kills again. And when they neighbours baby goes missing - don't say I didn't tell you so.
As for his Human Rights - he forefitted them when he started his killing spree.