Cyntoia Brown receives full clemency. She’ll use her freedom to help other young girls like her.

When she was 16, Cyntoia Brown killed a man who bought her for sex. After 15 years served, she’s been granted full clemency. Cyntoia Brown’s case has tested the limits of our justice system and gained the attention of criminal justice reform advocates and celebrities alike. Here’s a rundown of the basics of her case: Brown was born to a mother who abused drugs and alcohol and who placed her for adoption. As a teen, Brown ran away from her adoptive family and was taken in by a pimp, who raped her and forced her into prostitution. In 2004, a 43-year-old real estate agent, Johnny Allen, paid $150 to have sex with Brown—then 16—and took her to his home. Brown …