Opening the door, he paused to let his eyes adjust from the bright light of the summer day outside before he could see her.
The girl was huddled with a friend on a grimy mattress on the floor, lolling in a methamphetamine haze.
Instruments of modern-day bondage lay scattered about: A drug pipe keeping her in a meth-induced stupor, willing to do almost anything for the next high. A prepaid credit card. Three cellphones, tethering the girls to pimps and johns 24/7.
Dressed up in white lingerie and thick eye shadow, Bobbi Larson was just 17 and a long way from home.
"What's going on?" she yelled when she heard people in the hall of the Minneapolis bungalow.
Then a man about her dad's age walked in, shirt untucked over faded blue jeans, head shaved bald, a stubble of beard on his face. There was nothing unusual about that. Bobbi had learned to expect all kinds of men to show up. Rich professionals and blue-collar johns. Men from rough parts of town and those who drove in from posh suburbs, buying sex with girls as young as their own daughters.
He was careful about the tone of voice he used, aiming for compassion. "I'm Sgt. Snyder, Minneapolis police," he recalled saying. "I've been looking for you girls. You guys OK?"
Bobbi hated cops. They could disrupt her ability to get meth and haul her back into treatment.