The victim says the tracking began after Eder developed a personal interest in a female APD officer whom the victim had previously dated.

Of course.

The rest of the article, dude's just a straight up stalker with all the usual scary and creepy stalker behaviour.

Why are people like this? I have a friend who's housemate is currently being stalked by a woman twice his age and he barely knows her, but she's managed to break into their house after stealing and copying keys.