Neither. The murder case has been officially resolved so you can just Google it now.

Btw his place of residence was hardly secret, but it wouldn’t have been if he were prime minister of any other particular country either.

"Most critics focused on the absence of forensic evidence, charging that Petersson's case was made up of speculation and circumstantial evidence."

But if the case is officially resolved, well that's all good then. Nobody followed the Prime Minister to the theater and waited for him to leave in the dark of night. No stalking to see here, because Sweden. Move along.

The official conclusion was that the murderer did probably spot the Palmes as they entered the cinema, giving him time to go and borrow a revolver and get back in time to kill him once the movie was over. I don’t know any definition of stalking that would include that sequence of events. But the topic was data privacy - I strongly doubt that the facts that Palme’s person number and address were public contributed to his death.