He also served as the vicar apostolic to the Catholic mission in the Pando Department in Bolivia.
Born in Portageville, Missouri, Casey was ordained a priest by Cardinal Joseph Ritter for the Archdiocese of Saint Louis on April 7, 1962.
He was consecrated in La Paz on January 28, 1984 by Archbishop Alfio Rapisarda, the apostolic nuncio to Bolivia.
He criticized the participants for not addressing the deforestation and other environmental damage being inflicted on the Amazon Basin by mining and farming interests.
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