If I were LE, I would research suspects with Petty Crimes related cell phones, some who has stolen women's phones, someone who was arrested and had a whole bunch of phones on him or has stolen burner phones. I was thinking about how often SKs start off by breaking into people's houses and stealing women's underwear. I think phones are his fetish. If I were a betting woman, I would say that in his youth he made prank calls and masturbated. I also think he gets his jollies by looking at the pictures on his victim's phones.