McGuire was born on July 9, 1930, in
Oak Park, Illinois. He joined the Society of Jesus in 1947 and was ordained a
priest in 1961. After living in
Germany and
Austria in the early 1960s, McGuire took up a teaching post in 1965 at
Loyola Academy, a high school in
Chicago, but moved to
Loyola University Chicago in 1970. In 1983, he was appointed spiritual director of the
Missionaries of Charity, an order founded by
Mother Teresa, While at the University of San Francisco, McGuire developed a "roving ministry" leading
spiritual retreats for wealthy Catholics. and directing retreats for both lay people and members of Mother Teresa's order became a significant part of his career. The retreats, based on "
Ignatian spirituality", According to
The Boston Globe investigative journalist,
Michael Rezendes, McGuire's reputation was as a "globe-trotting spiritual retreat leader who counted Mother Teresa among his fans". As a result of his later convictions for
child sexual abuse, McGuire was dismissed from the Jesuits in 2007 and
laicized in 2008. In 2017, McGuire died in prison. ==Abuse and convictions==