Hudson Man Caught In Vigilante Video Now Facing Federal Sex Charge

A Hudson, Wyoming, man accused of chatting with decoys he believed were underage girls and luring them into sex acts has been slapped with a federal sex charge. An indictment returned Wednesday could mean another 20 years in prison for him.

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Clair McFarland

November 22, 20245 min read

Sean Brennan, 57 of Hudson, Wyoming, was confronted Friday, Sept. 6, 2024, in Lander for allegedly having sexually-charged online conversations with decoys he thought were underage girls.
Sean Brennan, 57 of Hudson, Wyoming, was confronted Friday, Sept. 6, 2024, in Lander for allegedly having sexually-charged online conversations with decoys he thought were underage girls. (Colorado Ped Patrol via YouTube)

A Hudson, Wyoming, man who was fired and jailed after becoming the subject of a vigilante video to confront alleged child sex predators is now facing another potential 20 years in prison after a new federal charge was filed Wednesday.

Sean Brennan, 57, was charged in a grand jury indictment with one count of child pornography possession. It’s punishable by between 10 and 20 years in prison, and up to $250,000 in fines.

It is unclear what probable cause evidence supports the federal indictment, but it says that from Feb. 17, 2018, to about Sept. 6, 2024, Brennan “knowingly” possessed child pornography images involving prepubescent minors on his Dell Notebook computer, his Apple iPad Mini, an HP laptop and a Sony laptop.

Brennan may have to lose these devices to the government as part of the case, says the indictment.

The new federal charge follows a state case from September, in which the Fremont County Attorney’s Office charged him with third-degree sexual abuse of a minor. That allegation carries a maximum penalty of 15 years in prison and $10,000 in fines.

Brennan pleaded not guilty to the state charge Oct. 17 in Fremont County District Court.

Often, state prosecutors drop their cases when the federal prosecutors add charges of this nature. However, Fremont County Attorney Patrick LeBrun said Friday he was not ready to comment on whether Brennan will continue to face state prosecution.

Ped Patrol

Brennan became the subject of a Sept. 7 YouTube video by Tommy Fellows of Colorado Ped Patrol.

Fellows organizes an operation in which adults pose as underage girls or boys on internet messaging sites to root out suspected predators who would target them for lewd text or photo exchanges or offer to meet with them for sex.

A sexual exchange between Brennan and a person posing as a 13-year-old girl led Fellows from his base in Colorado to Lander, Wyoming, to confront Brennan at work, according to Fellows’ video of that confrontation.

Fellows invited Brennan to visit with him outside the logo shop that had employed Brennan at the time. Fellows showed the man a binder, which he said was a transcript of sexual conversations between Brennan and the decoy “girls.”

“Do you get sexual with them?” asked Fellows, after the two men walked outside together.

“No,” said Brennan, shaking his head. “I let them know off the bat.”

“So you’d never send, like, inappropriate pictures or anything like that?” asked Fellows.

“Nope,” said Brennan.

“So that phone on you has no child porn on it or anything like that?” asked Fellows.

Brennan again said “nope.”

Fellows said he could prove otherwise and asked if he should have the police come check. He then started flipping through the binder.

Fellows recounted a conversation in which Brennan had allegedly told the decoy that he’d had a 16-year-old girlfriend.

Brennan said the 16-year-old was emancipated and that he didn’t sleep with her anyway, but made the claim up for the internet.

“Do you beg minors for naked pictures often?” asked Fellows in the video. “You said ‘send me a picture’ and you got pissed off, then you said, ‘listen little girl, just remember, I’m not mad but don’t ever ask me for a picture again.’”

Fellows then accused Brennan of teaching lewd acts to one of the “girls,” of making sexual plans with her and sending her sexual pictures.

Brennan said in the video he wasn’t going to go to Colorado and actually do the things he discussed with the decoy.

Watch on YouTube

Canned

Fellows also confronted Brennan about having been convicted of a child pornography crime while he was living in Arizona around 25 years ago. Brennan had to register as a sex offender for the crime, both men noted.

But Brennan claimed in the video that he didn’t have to keep registering as a sex offender after moving to Wyoming, and said Wyoming authorities told him that his Arizona child-porn conviction was “crap” by their standards.

Brennan said he was convicted after doing research on a public library computer about which nude beach to visit with his then-girlfriend, and some of the websites happened to contain pictures of underaged girls.

Brennan’s boss came outside demanding to know what was happening, and when Fellows told him, the boss — disgusted — fired Brennan immediately.

In the video, Fellows appeared impressed by the boss’ reaction to the news.

“If you guys know this area or you are in this area, make sure you come down and support this local business,” said Fellows in the video. “What a great owner.”

Lander Police Department On Scene

In the video, Lander Police Department Officer David Milovich responded to the store, warned Fellows that his license plate tags were expired, and noted that he’d worked with Fellows during a prior stint policing in Colorado.

Milovich started looking through the binder. He lamented that “Wyoming is way behind Colorado” in the strength of its sex-crime laws and said that at first glance, he didn’t see enough evidence to arrest Brennan on scene for an alleged felony.

Milovich later gathered enough evidence for a probable cause finding of the third-degree sex charge and arranged Brennan’s arrest within hours of the encounter.

Contact Clair McFarland at clair@cowboystatedaily.com

Sean Brennan walks to a Fremont County jail transport van Thursday, Oct. 17, 2024, after pleading not guilty to a child sex charge in Lander
Sean Brennan walks to a Fremont County jail transport van Thursday, Oct. 17, 2024, after pleading not guilty to a child sex charge in Lander (Clair McFarland, Cowboy State Daily)

Clair McFarland can be reached at clair@cowboystatedaily.com.

Authors

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Clair McFarland

Crime and Courts Reporter