SAN ANTONIO — A conspiracy theorist arrested after telling a Texas church that the killing of more than two dozen of its worshippers was a hoax has been arrested again on a federal weapons charge.

Court documents show that federal and state authorities on Wednesday arrested 54-year-old Robert Mikell Ussery in Lockhart on a charge of being a convicted felon in possession of a firearm.

He was ordered held at a Thursday federal court appearance pending a bail hearing, according to the San Antonio Express-News.

Ussery was convicted in 1984 and sentenced to four years in prison for burglary of a vehicle in Brazoria County, Texas.

The new charge centers on his armed presence March 5 at the First Baptist Church of Sutherland Springs, about 30 miles southeast of San Antonio. Worshippers there have said he and his girlfriend claimed the shooting was fabricated by the U.S. government. Ussery was charged at the time with making a terroristic threat.

He has also claimed that the May 17, 2015 biker shootout in Waco, in which nine were killed and 20 were injured, was a "hoax," according to the Express-News.

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