The first Parenti I ever read https://www.commondreams.org/views/2007/10/22/mother-teresa-john-paul-ii-and-fast-track-saints

In John Paul's celestial pantheon, reactionaries had a better chance at canonization than reformers. Consider his treatment of Archbishop Oscar Romero who spoke against the injustices and oppressions suffered by the impoverished populace of El Salvador and for this was assassinated by a right-wing death squad. John Paul never denounced the killing or its perpetrators, calling it only "tragic." In fact, just weeks before Romero was murdered, high-ranking officials of the Arena party, the legal arm of the death squads, sent a well-received delegation to the Vatican to complain of Romero's public statements on behalf of the poor.

Romero was thought by many poor Salvadorans to be something of a saint, but John Paul attempted to ban any discussion of his beatification for fifty years. Popular pressure from El Salvador caused the Vatican to cut the delay to twenty-five years. In either case, Romero was consigned to the slow track.