ROWLETT A six-year hoax mail mystery has been solved, according to investigators. Agents with the Federal Bureau of Investigation announced Monday they now know who sent more than 500 letters filled with white powder since 2008.

Hong Minh Truong, 66, was arrested at his home in Rowlett early Monday morning. Truong is accused of lacing hundreds of letters with a white powder FBI agents believe the man wanted recipients to believe was anthrax, a toxic substance.

According to court documents, Truong was allegedly sending the hoax letters to government offices, politicians, U.S. embassies overseas, and to schools across the country. The letters even triggered major hazardous materials scares, tying up emergency resources at schools and locations across Dallas County.

Investigators say those powder-laced hoax letters contained quotes, including:

Court documents show the FBI and U.S. Postal Inspectors spent months digging through trash outside Truong's home on Rosebud Drive in Rowlett uncovering evidence.

Agents said one document discovered this month contained alleged threats, including, 'Hijack airplane from Love Field airport and Dallas-Fort-worth airport to attack Nasa Center.'

Truong's wife claims the man has been suffering with mental illness for more than a decade. She saod Truong often claims he hears voices in his head.

Truong remains in federal custody; investigators have labeled him a flight risk.

The suspect is due in court for an arraignment hearing on August 4.


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