I think so. (But I'm not convinced he even killed her, so I guess I'm no help.)
Some forms of porn are linked to violence. But...we don't really 'know' that his mind was heavily steeped in porn. The evidence concerning what is on his computers--and how it got there--will take awhile to gather, possibly several months.
Looking at just the facts, here is what we 'know':
• JH's computer equipment disappeared
somehow that Tuesday AM. At least he didn't appear to come home with it when he was found walking by the Judds (who brought him home 2 hours later); he told Amanda 9:00 when he arrived home that night his laptops, etc., had been stolen. She gives no indication to LE that he, in fact, came home with it all or had it on him. And the search warrant of his apt executed on Thursday only turns up Amanda's computer, not his.
*In fact, AH is concerned enough to call AT&T, and cancels his cell phone line when it's discovered to have had data activity on it at 7 AM (he reportedly was robbed at 6 AM). JH says last usage he made on it was Monday when he called Amanda to pick her up from work.
BUT...if JH had truly been using Clint's old cellphone (confessed as stolen),
why wasn't that the one in his backpack that was reportedly stolen Tuesday? Why does that turn up at the crime scene Friday?
See pdf, p. 31:
The Robbery Story: (interviewed by Harrington & Rhodes)
*If robbers had made off with everything valuable in his backpack, they'd have made off with the 2 guns which he suddenly 'confessed' to Friday as having packed in his backpack that morning. But...then the shooting he also confessed to couldn't have happened, as the guns he supposedly packed for it would have been stolen--he said only cable cords, and other non-expensive stuff was left in the backpack. Either Wednesday's robbery story is bogus, or Friday's confession to having packed two guns in his backpack Tuesday morning and having shot WH is bogus. Or, all are bogus.
What's not as clear is why he suddenly offered up the porn and stolen iPhone stories on his 3rd interview Friday (and led them to the place where that iPhone would be found at the end of the 6-hr. interview). If he's going to randomly confess to porn on his computers, why not bring them in with him that day and turn them in? Why leave the backpack, which has mysteriously turned up, in his car? (The backpack was seized during search warrant executed during his long, 6-hour, 3rd interview Friday.)
Don't know...possibly she was placed on the hood while the "clean up" was being taken care of?
Neither am I. The only 'convincing' crime I'm seeing so far is a brutal execution of a beautiful girl.