Sr. Dorothy Stang, a human rights and environmental advocate, was an American-born member of the Sisters of Notre Dame de Namur working in the Amazon rainforest in Brazil. Her work to support peasants and prevent deforestation led to threats from loggers and ranchers. She was assassinated Feb. 12, 2005. Here are several articles from National Catholic Reporter and Global Sisters Report about her life and her martyrdom:
The screech owl named for Sr. Dorothy Stang is a tribute 'symbolic of her life'
Brazil remembers Sr. Dorothy Stang; landless defenders still threatened
Sr. Dorothy Stang, martyred American nun, remembered at Amazon synod
Sr. Dorothy Stang, Martyr of the Amazon
The legacy of Sr. Dorothy Stang
Francis' call for Amazon protection echoes work of Sr. Dorothy Stang