"We're not doing anything against the law," Daniels said. "Against canon law, sure. But the United States' law? No. We're not doing anything wrong."
The group previously attempted a black mass using a consecrated Host stolen from a Catholic liturgy. The move caused massive protests, with Archbishop Coakley playing a leading role in criticizing the event. Daniels returned the consecrated Host after a lawsuit sought the return of stolen property. The ritual went forward without the Host in September 2014.
At the same time, thousands of Catholics and others held prayers, Eucharistic processions, and demonstrations outside the city hall as the group held a sparsely attended black mass.
Daniels had attempted to hold a mock exorcism at the civic center's music hall in 2010 as part of a different Satanist group he had co-founded and led as a "Dark Overlord." However, the group expelled Daniels after learning he was a sex offender.
Oklahoma City's News 9, citing court records, in 2010 reported that Daniels was a registered sex offender and was convicted of sexual battery on a person over age 16.
The Aug. 15 event is advertised on the Oklahoma City music hall's website as a presentation of the group Dakhma of Angra Mainyu. The website says the black mass will be performed "as done in 2014." The ritual involving the Virgin Mary statue "will educate the public on the practice of Ahrimanism."
Daniels claimed the Catholic Church was attempting to infringe on his religious liberty by blocking his rituals.
"They're the one who started this fight; I'm just bringing it to them," he told the Oklahoma Gazette.
The Family Policy Institute of Oklahoma is among the participants of the prayer walk.
"This year has been a difficult year on many levels for Oklahomans and Americans, but now is the time for the Body of Christ to come together in unity across denominational lines in a Call to Prayer," Timothy Tardibono, the institute's director, said Aug. 10. "As Oklahoma's communities search for answers in these troubling times, Christ's unified followers in Oklahoma City can provide the peace and hope our neighbors are desperately seeking just as Christ envisioned."
Dr. Anthony L. Jordan, executive director-treasurer for the Baptist General Convention of Oklahoma, said the churches involved continue to recognize their doctrinal differences but also believe it is time to gather together in prayer.
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"We believe that only the light of the Gospel can provide the peace and hope our neighbors are desperately seeking amid these troubled times," he said.
Dr. A.D. Beacham Jr., who heads the International Pentecostal Holiness Church Executive Offices in Bethany, Okla., said he was thankful that "the Body of Jesus Christ in Oklahoma City is gathering to stand for righteousness, hope and reconciliation in our city."
In 2014 an official with the Oklahoma City music hall told CNA it has a policy of neutrality.
"We do not discriminate against any group based on the content of their message," she said.
She said the government policy would mean the center would be willing to host a racist or anti-Jewish event "as long as it was not hosting something specifically illegal in nature, or that during the production they were taking part in illegal activities."
Previous satanic rituals at the music hall were poorly attended, the official said.