Not factual.No charge simply means the victims didn't know they were being stalked; they can't prove the elements of the crime. It does not mean that he didn't stalk the victims in some form, to include surveilling the house.
His phone data, and the way this crime was committed certainly indicates he put a lot of planning into this. I can't fathom he hadn't driven past that house before, at the very least.
It honestly wouldn't shock me if he had been even closer than that.
Also, how would a murder victim know they were being stalked if the ONLY stalking that occurred was minutes BEFORE their murder?