Leah Vincent was born into the Yeshivish community, an ultra-Orthodox sect of Judaism, in Pittsburgh.
"Yeshivish Judaism life is defined by religious law," Vincent tells NPR's Arun Rath. "We keep extra-strict laws of kosher, observe the Sabbath every week, maintain a separation of the sexes and a degree of isolation from the outside world."
When she was 16, she was caught exchanging letters with a male friend. Contact with men is forbidden in her sect, and she was cast out from her community.