When Mary Johnson was a 17-year-old high school student, she saw a picture of then-Mother Teresa on the cover of TIME magazine in her school's library and fell in love.
Two years later, Johnson became a nun in Saint Teresa's order. She spent 20 years as a sister in the Missionaries of Charity but eventually left, looking for something more and ended up married in Nashua, New Hampshire. She wrote a book about her experience called “An Unquenchable Thirst: Following Mother Teresa in Search of Love, Service, and an Authentic Life."
When we talked to Mary about her book back in 2011, the Catholic Church was going through the motions of then-Mother Teresa's canonization. This past Sunday, Pope Francis made it official. She's now known as Saint Teresa of Calcutta.
This interview originally aired on Dec. 9, 2011.
This segment aired on September 7, 2016.