Source is the Federal Bureau of Prisons.

Type in “Mariia Butina” in the “Find an Inmate” box.

https://www.bop.gov/inmateloc/

Mariia Butina plead guilty to being a Russian spy.

She is a gun runner, manufacturers representative for Kalashnikov USA, and works with Paul Whelan to sell sniper rifles and gear to private contractors who work in assassination teams throughout the world.

https://brassballs.blog/home/judge-tonya-chutkan-cover-up-coverup-maria-mariia-butina-russian-spy-case-kalashnikov-sales-rep-representative-gun-runner-jessie-liu-bob-driscoll-kenerson-eric

Updated 7:45 a.m.

According to the Federal Bureau of Prisons, Butina had a visitor yesterday at the Truesdale Detention Center in Alexandria, Virginia.

The Bureau of Prisons has received no instructions from a federal court judge on the assignment of Butina to a specific federal prison.

Updated May 6th 8:27 a.m.

https://www.bop.gov/inmates/visiting.jsp