If you lost a former lover, one you broke up with four years earlier, would you create a website to honor him and to mourn his passing with a gallery of pictures of the two of you as a couple? Mind you, you were the one who ended it. Doesn't make sense.
You caused him, "pain" to your endless regret, yet you move across the country to see if you can reunite 6 months before he's murdered. Weren't you fearful of causing him pain once again if you couldn't commit to a relationship with him a second time?
Not buying it.
She was obsessed with him instantly. She never ended anything. He was never committed to her in the first place. She stalked him to San Fran in 2003. She didn't break it off in October, 2003. He tried to get away from her, but she wouldn't hear of it. She pursued him the entire time she was in S.F. which continued uninterrupted until mid-2005. She tried to make him miss her by relocating for a year to Virginia, but that didn't work, either; she returned to S.F. in November 2006 for another go round. But, he is still not interested in a relationship with her. She cannot tolerate that reality. After years of failure to form a committed relationship with him, it finally begins to sink in. He was never going to be hers. That is not acceptable. And, all the while he's busy with a host of other females.
Her best bet, her best strategy not to be caught is to champion the cause to find his killer. If she let's the police play with I suicide theory without objecting, they may sense she accepts that bazaar theory too easily for a reason. They may figure she wants the whole thing to go down as suicide. But it is a trap. They know it isn't suicide. They know she knows it isn't suicide. If she accepts that theory without a fight, anyway, they've got her. So, she does the opposite, confident she's done the crime without leaving too much evidence, and goes crazy exposing the suicide theory as preposterous. My humble opinion