Federal authorities arrested a Massachusetts man Thursday on charges he cyberstalked conservative podcaster Katie Miller and her family with more than 40 disturbing contacts.
The FBI took John Anthony Proia III into custody on a stalking charge, and a federal grand jury in Boston later indicted the 41-year-old on one count of cyberstalking, NBC News reported.
Prosecutors say Proia used changing phone numbers to flood Miller, her husband, and her parents with calls, texts, and voicemails over less than two months. Officials describe a campaign meant to frighten the family and inflict emotional distress.
Katie Miller, a former Trump administration adviser who hosts a popular conservative podcast, lives in the Washington, D.C., area. She is married to Stephen Miller, the White House deputy chief of staff for policy. An administration official familiar with the case identified her as the victim; the Justice Department did not name her in its release.
Court documents and a Justice Department news release lay out the alleged pattern. From the August-to-September time frame, Proia is accused of contacting the former political adviser more than 40 times in less than two months.
The messages came from “an ever-changing series of unfamiliar phone numbers,” the department said. Officials say he obtained free numbers through VoIP apps that hide a caller’s identity and let someone generate new lines at will.
Some calls came late at night. On other days, multiple communications landed in a single stretch. Miller answered some of the calls. Others went to voicemail.
Justice Department materials say the calls “were allegedly made by what appeared to be a male caller employing a menacing tone and often using expletives.”
U.S. Attorney Leah Foley put the scope in blunt terms.
"As alleged in the Indictment, the defendant repeatedly and relentlessly targeted the victim, her husband and her family with deeply disturbing communications that profoundly disrupted their lives,"
Ted Docks, special agent in charge of the FBI Boston Division, said Proia was arrested “for allegedly engaging in a sustained campaign of harassment to frighten this victim and her family, inflicting significant emotional distress.”
The charging papers do not stop at contacts with Katie Miller and Stephen Miller. They also describe texts sent to her parents.
One alleged message to Miller’s mother called Stephen Miller “evil” and labeled Katie Miller a “creature.” Another featured a photo of Katie Miller and read, “My god, how can you be proud of this filth?”
An alleged text to the victim’s father went further. According to the documents summarized in the report, it said: “Hey [first name of victim’s father], how goes it? Hope your daughter marrying a Jewish Nazi/white supremacist is working out for you and [first name of victim’s mother]. Did you raise her to be trash or did that just happen naturally?”
Those are allegations in charging documents, not findings after trial. Still, they show why federal prosecutors framed the conduct as more than ordinary online noise.
Katie Miller responded on X after the indictment, thanking Attorney General Todd Blanche, U.S. Attorney Leah Foley, and the FBI Washington Field Office “for keeping me and my family safe.” She added: “Good to see a Boston grand jury indict this man.”
The arrest did not arrive in a vacuum. Over the weekend before the Thursday takedown, Bloomberg reported that two senior FBI officials in Washington had been demoted and reassigned to FBI headquarters.
Three people familiar with the matter told Bloomberg the moves followed concerns that the agency was not moving efficiently enough on the threatening calls to Miller. The episode fits a broader stretch of FBI counterterrorism leadership changes watched closely inside the bureau.
Darren Cox, assistant director in charge of the FBI Washington Field Office, pushed back on that framing. He told Bloomberg the shift was a personnel decision made at the field-office level based on “our constant evaluation of mission needs.”
Leadership churn at the FBI has been a running story in its own right, including the recent exit path around Andrew Bailey’s departure as FBI co-deputy and related succession questions.
Whatever the internal score-settling, the public result on Thursday was concrete: an arrest, a Boston indictment, and a named defendant facing a federal cyberstalking count.
Stephen Miller’s role as a high-level federal employee put the household in the political blast radius that comes with senior White House work. Katie Miller’s own profile as a former administration adviser and working podcaster added another layer of visibility.
That visibility is not a license for strangers to terrorize a spouse’s parents with late-night calls and vile texts. Federal stalking and cyberstalking laws exist precisely because modern tools make it cheap to hide behind disposable numbers and keep hammering a target.
White House orbit personnel moves continue on other fronts as well, from senior communications jobs to outside political roles, including coverage of figures such as Karoline Leavitt’s shift toward a MAGA Inc. super PAC after her press secretary tenure.
None of that personnel noise changes the core allegation here. A Massachusetts man is now under federal indictment for what prosecutors call a relentless stream of menacing contacts aimed at a conservative communicator, her husband, and her parents.
Open questions remain. Court papers cited in the coverage do not yet lay out a full public docket number, a precise arrest location, Proia’s custody status, or any plea. The Justice Department has not released a complete message log beyond the excerpts described. Motive, beyond the harassment theory in the charging language, is not spelled out in the available official statements.
Those gaps will get tested in court. The indictment itself already does a simpler job: it treats sustained, identity-masking harassment of a public figure’s family as a federal crime, not a partisan hobby.
Bureau management fights will keep drawing headlines, including further reporting on Trump-era FBI reform fallout and Bailey’s exit. The measure that matters for the Millers is whether threatening campaigns meet handcuffs and a grand jury.
Political disagreement is protected. Hunting a wife, a husband, and aging parents with dozens of hidden-number threats is not. When the FBI and a Boston grand jury finally draw that line, the country is better for it.
