In a letter distributed Saturday to six parish communities, Cardinal Blase Cupich said he had accepted the review board's recommendation to close the case against Fleck. The archdiocese received the allegation in July, more than 30 years after the alleged abuse occurred. Fleck served as pastor of Our Lady of Peace from May 1984 to August 1996, the period during which the abuse was alleged to have taken place.
Three months ago, Cupich asked Fleck to step away from ministry while civil authorities and the archdiocese's Independent Review Board investigated. The archdiocese also said it had been informed that a lawsuit alleging sexual abuse of a minor would be filed.
Fleck strongly denied the allegation and cooperated with the investigation, according to Cupich's letter. The cardinal described Fleck as a priest in good standing and expressed appreciation for his years of service.
"It is important to stress that the welfare of the children entrusted to our care is of paramount importance," Cupich wrote. "For this reason, we take all allegations of sexual misconduct seriously. At the same time, we must restore the good name of anyone so accused when the allegations are found to be unsubstantiated."
Fleck also served at St. Barnabas, St. Josephine Bakhita and St. Katherine Drexel in Chicago, as well as St. Catherine of Alexandria in Oak Lawn, Christ Our Savior in South Holland and St. George in Tinley Park. The archdiocese encouraged anyone who has experienced sexual abuse by a priest, deacon, religious or lay employee to come forward.