Marietta police have charged a 29-year-old man with mailing bomb threat letters to two city schools, authorities said Tuesday night.

Valtrez Nathaniel Stewart was charged with sending threatening letters to Marietta High School and Marietta Middle School on Feb. 1, Officer Jenny Murphy said. Stewart is accused to mailing the letters from Illinois, was he was arrested on other charges Jan. 31, police said.

Stewart has no known connection to either school, Murphy told WSB Radio AM-750 and now 95.5 FM News/Talk.

“There is not a tie between our suspect and our school system that we have discovered in our investigation yet,” Murphy told WSB. “It’s almost, if you will, like they were randomly chosen.”

Both schools received identical, photocopied letters, Murphy said. The original letter was put together from clippings from newspapers or magazines.

That letter threatened a bomb if $10 million was not delivered to 10 people -- whose names were listed on the back of the letter -- by Feb. 4, Murphy said.

Murphy did not release any details about those 10 people, citing the ongoing investigation, but she did say they have a Georgia connection. They do not have a link to Marietta, however, she told WSB Radio.

“It’s a little bit bizarre and complex,” Murphy told WSB Radio. She did not want to elaborate because the investigation is ongoing.

Stewart remains in custody in Cook County, Ill. Police have issued a warrant charging him with two counts of felony terroristic threats and two counts of misdemeanor disruption of public schools-education.

Murphy said Stewart has a “lengthy” criminal record that includes serving jail time in south Georgia. She did not know what those charges were. He will be extradited to Cobb County once he has been released on charges in Illinois.

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