Actually, it's only logical from the POV of a murderer.
A distraught person contemplating suicide doesn't tightly bind up their feet and hands before staging a crime scene, painting a message on the door and jumping over a balcony while barely touching it, all in the nude.
They also don't tape their legs and inflict defensive wounds on their hand, nor do they bash themselves in the head four times.
Since RZ was attacked while taking a shower, it seems likely someone was already in the house, viewing




on her computer before surprising her in the shower.
It will be interesting to see all the evidence at the WD trial to discover which parties had a history of viewing online




and which ones didn't. Assume that's why RZ's computer has never been returned to her.
BTW, all the recent revelations about NSA and FBI's gathering of mass metafiles on everyone's phone calls, emails and computer files is very interesting. Most of the data collection began in 2007, and has been stored at the NSA and FBI. Since this crime took place in 2011, we now know the attorneys can ask the FBI to retrieve all phone call data, texts, emails, computer searches, etc. for the parties involved in these cases. They have the data.