The church security guard asked him to leave about 11 p.m., which he did, only to come back, Riverside Police Lt. Guy Toussaint said.
When Onuoha returned, the guard wrote down the New York license plate of the van and called Riverside police, who rushed to the church about 11:40 p.m.
The Joint Terrorism Task force — including FBI agents who had been tracking Onuoha — also headed to the location. Once there, a Riverside police SWAT team approached the parking lot, Toussaint said.
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"As they were approaching, he drove off. We think he was just leaving and didn't see the SWAT officers coming," Toussaint said. "They made a high-risk felony stop and he fully cooperated."
A subsequent search recovered several packages and a large red cross near the church, but no weapons or explosives. A similar cross appeared in photos that were on a website where several rambling letters signed by Onuoha include references to 9/11 and the "end of the world."
He also ranted about a June incident that sources said led to Onuoha's TSA suspension when he chastised a teenage girl about her attire.
Another 17-page letter harshly criticized the United States, stating "America is nothing but a great Harlot that corrupts the innocent." The letter, dated Aug. 25, promised to deliver a "real message" on Wednesday, the 12th anniversary of the 9/11 terrorist attacks.ALSO:
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