Questions about Bishop Barros dominated a news conference held on the papal plane during the Pope's return to Rome following his visit to Chile and Peru. In response to those questions, Francis admitted he had made an error in choosing his words and apologized to victims of clerical sex abuse.
"I apologize for hurting them without realizing it. But I did not intend this," said Francis.
"The word 'proof' was not the best way to approach a pained heart. I would say 'evidence.' In Barros' case, it was studied. It was restudied. And there is no evidence. And that is what I wanted to say. I don't have evidence to convict.
"If I convicted without evidence or without moral certainty, I would commit a crime of being a bad judge," said Francis.
'I am convinced he is innocent'
He also reaffirmed his support for Barros -- and his assertion that allegations of sex abuse without evidence are slander.
"I am also convinced he is innocent," he said.
Cardinal O'Malley, while partly critical of the Pope, also defended the pontiff's commitment to a zero-tolerance policy on clerical sex abuse.