A homeless girl didn’t want to be in the sex trade. But a Hayward man told her he’d kill her canine companion if she left, police say

UNION CITY — When she met Roberto Reyes, 15-year-old Jane Doe didn’t have anything in the world but a sidewalk to sleep on and a pet dog she traveled around San Francisco with, searching for shelter, according to police.

When she met Reyes, 34, of Hayward, through a female friend, the two offered to get the girl and her canine a motel room in Fremont, and she took it as a sign her luck was about to change. But before long she came to learn she was being groomed by a man who told her she could bring in money by attracting “grown a...