(Undated-AP) -- Former Oklahoma Governor Frank Keating is quitting as head of the commission examining the sex-abuse scandal in the Catholic Church. Keating has been blasted by Los Angeles Cardinal Roger Mahony for remarking that some church officials have been hiding and suppressing information like the Mafia. Mahony, quoted in the Los Angeles Times, called Keating's comment "the last straw." Keating's spokesman says the criticism "hastened his decision" to resign, but he's been talking about the possibility for several months. The Reverend Thomas Reese of the Jesuit weekly America, says Keating's departure is -- quote -- "another stumble on the way to cleaning up the bishops' reputation." And representatives of abuse victims say they're saddened by Keating's decision.