There is no evidence that Nuno F.G. Loureiro, an M.I.T.-affiliated scientist who was shot Monday at his home in Brookline, Mass., was killed in an antisemitic attack. It’s not even clear that he was Jewish.

But in the hours after his death Tuesday morning, a rumor spread that Loureiro was Jewish — and targeted for his pro-Israel politics. In the wake of a mass killing at a Hanukkah celebration in Sydney, Australia, prominent Jewish social media influencers pointed to Loureiro’s death as proof that Jews all over the world were under attack.

The claim appeared to originate from Ira Stoll, the author of a conservative-leaning Substack newsletter called The Editors. In the newsletter and on X, Stoll reported Tuesday that Loureiro was Jewish. On Substack, Stoll attached a screenshot of a Threads post in which a user with that name defended Israel and criticized Hamas.

There was just one problem: The Threads account did not belong to the slain M.I.T. professor. But in an online information ecosystem that rewards virality, paranoia and hot takes — and whose most influential voices are rarely beholden to journalistic ethics — the unverified assertion took hold.

“Loureiro has been reported to be Jewish with strong pro-Israel views,” the pro-Israel account StopAntisemites shared with more than 350,000 followers. Quoting that post, pro-Israel activist Eyal Yakoby wrote to his 250,000 followers on X, “Every Jew must arm themselves.”

Influencers who repeated Stoll’s claim stated it as fact, usually without stating their source of information. If they had, other uses might have seen that Stoll deleted the X post, and edited his Substack article to include a clarification that MIT had clarified the Threads account belonged to a different person.

Instead, the unverified claim spread to other platforms.

“It’s Jew-hunting season,” the pro-Israel food influencer Gabriel Boxer, who goes by Kosher Guru, and the Jewish account Community News told nearly 400,000 Instagram followers in a joint post. Marnie Perlstein, an Australian Jewish influencer, asked in a Reel why the media wasn’t talking about Loureiro’s Jewish heritage.

There was a good reason legacy media that covered Loureiro’s death, among them the Associated Press and The New York Times, did not report that Loureiro was Jewish: It’s not yet clear whether he was. Indeed, some evidence suggests he wasn’t.

At around the same time as Yakoby’s post, a man named Joah Santos tried to shoot down the rumor, saying Loureiro, a friend of his, was not Jewish and would have never spoken about Israel or Gaza. (The Forward has reached out to Santos.)

StopAntisemites’ post had been reposted nearly 2,500 times and received nearly 600,000 views as of this Wednesday evening, and remains visible on X. Santos’ opposing claim, meanwhile, has been seen only 150,000 times.

The idea that Loureiro was Jewish eventually found its way into Yeshiva World News and the Jerusalem Post, which called Loureiro “a Jewish and vocal pro-Israel nuclear scientist.”

Authorities have opened a homicide investigation into Loureiro’s death; no suspects or possible motives have been disclosed. Funeral details have not been announced.

It’s possible that Loureiro was Jewish — neither the university that employed him nor his family has stated otherwise. But no one has been able to say definitively that he was.

The MIT media relations team told the Forward it could not comment on a staff member’s ethnicity or religion. MIT Hillel did not respond to a voicemail left Wednesday evening.

Bruno Cappi, who described himself as a close friend of Loureiro’s in the MIT physics department, said in an interview that he had worked with the professor since 2016 and that his friend had never mentioned being Jewish during that time. Many of their colleagues in the department were Jewish, Cappi said, with last names typical for Jewish ancestry like Friedman and Rosen; if someone were attacking Jews, why would they go after someone whose Jewish identity was not widely known? “It’s all absurd,” he said.

More than 24 hours after Santos and others tried to correct the record, the articles from the Jerusalem Post and Yeshiva World News remained online. The posts by Yakoby, KosherGuru and Perlstein — none of whom responded to requests for comment prior to publication — also remain up as of this publication. (Some X posts have pending crowd-sourced Community Notes underneath stating he is not Jewish and linking to Santos’ post, but those notes are not currently being shown to all users.)

Additional evidence that Loureiro was pro-Israel was also thin: An X user claimed that a Google Street view image of the professor’s home showed a “Stand With Israel” sign. If the image did depict his building, it had been taken three years earlier; it also showed a multifamily building, and Loureiro — if he did live in the building at the time — did not necessarily live in the unit with that window.

Nevertheless, the claim continued to spread. Around 8 p.m. ET on Tuesday — several hours after the posts from Stoll and StopAntisemites — a Wikipedia article was created about Loureiro, which claimed he was born “to a Sephardic Jewish family.” That claim remained on the article for four hours before a different editor removed it.

The post After MIT professor’s killing, Jewish influencers spread unverified antisemitism claim appeared first on The Forward.

US Rep. Byron Donalds (R-FL) speaks on stage during the Turning Point USA Student Action Summit on July 11, 2025, in Tampa, Florida. Photo: Luis Santana/Tampa Bay Times via ZUMA Press Wire via Reuters Connect

US Rep. Byron Donalds (R-FL) has firmly established himself as the frontrunner in Florida’s Republican primary for governor, new polling shows, building a substantial lead over the field, which includes anti-Israel investment firm CEO James Fishback. 

The survey, carried out by The American Promise, finds Donalds leading the field with 38 percent support among likely Republican voters. Lt. Gov. Jay Collins trails far behind at 9 percent, while Azoria CEO James Fishback registers 2 percent and former Florida House Speaker Paul Renner garners just 1 percent. Nearly half of respondents, 49 percent, say they remain undecided.

Donalds, a stalwart conservative and strident ally of US President Donald Trump, has established himself as a firm ally of Israel. Donalds expressed support for Israel’s right to self-defense in the wake of Hamas’s Oct. 7, 2023, massacre across southern Israel. As skepticism about Israel has surged within the Republican Party in recent months, Donalds has maintained strong vocal support for the Jewish state.

During an interview with Fox Business this week, Donalds lamented rising antisemitism and anti-Israel sentiment within the country and around the world. 

“This level of antisemitism, this hatred against Jewish people and against Israel, it’s out of control. It’s insane,” Donalds said. 

Donalds also reflected on the antisemitic terrorist attack at Bondi Beach in Sydney, Australia on Sunday, connecting the rise of extremism in Western countries to relaxed migration policies. 

“I mean, this rhetoric around hating Israel, hating the Jewish people, that has to stop because there are real-world consequences. There are crazy people who will carry this out,” he said.

“And to Joe Biden and what he did on the southern border for four years, this is the reason why Republicans and President Trump, we are taking border security so seriously in the face of Democrats who had no problem leaving our borders wide open. It’s actually put the nation at risk,” he added. 

Fishback, a successful investor, entered the gubernatorial race on a slate of populist agenda items. He has raised eyebrows in recent weeks by flirting with members of the antisemitic Groyper movement and signaling acceptance of its leader, Nick Fuentes. 

During a December appearance on Rift TV, a podcast hosted by antisemitic social media pundit Elijah Schaffer, Fishback said that he finds “the audience of young men who follow and watch Nick Fuentes to actually be incredibly informed and insightful.”

After receiving substantial blowback over his comment, Fishback released another campaign video in which he reiterated his defense of Fuentes’s supporters. 

“I want to clarify some comments I made this week rather abruptly” about “the young men in our country who watch and follow Nick Fuentes,” Fishback said. 

“I want to clarify and apologize for absolutely nothing,” he continued, adding that his interactions with Fuentes supporters at his campaign events were “respectful” and “civil.” 

“We had a great conversation, and they have a real pulse for what is going on in the country,” Fishback said. 

Fuentes, a 27-year-old antisemitic internet personality and provocateur, has experienced an increase of popularity in recent months, propelled by a surge of viewership from young men. Fuentes has repeatedly parroted Holocaust denial talking points and suggested that Jewish people are more “loyal” to Israel than to the United States.

Amid the uproar, Fishback released a subsequent video on Tuesday defending the free speech rights of those who believe that Israel is committing a so-called “genocide” in Gaza and that Israeli Prime Minister Benjamin Netanyahu should be considered a “war criminal.” He falsely suggested that those who criticize Israel are facing legal repercussions. 

“Is Netanyahu a war criminal? Did Israel commit genocide? If you say either of those statements in public, you could be convicted of antisemitism. Criticizing a foreign government or any government is always protected under our constitution,” he said. 

Observers have noted that Fishback’s attempts to entice younger, more online portions of right-wing audiences are a microcosm of the growing rupture between Gen Z and older conservatives on the topic of Israel. Recent polls have indicated a collapse of support for Israel among young Republicans, with this portion of the party expressing more skepticism of providing military aid to the Jewish state. Large swaths of GOP voters under 30 have voiced vocal criticism of US support for Israel and the supposed influence of the America Israel Public Affairs Committee, a prominent pro-Israel lobbying group, in US politics.

Recent surveys have also shown a substantial rise of antisemitic views among younger cohorts of the Republican Party.

During the pandemic, teenager Simone Elias found solace in movies from the Golden Age of Hollywood. The glamorous sets, the romantic storylines, the studio-styled movie stars all held a nostalgic appeal.

“There’s something so magical about going back in a time machine,” Elias, 16, said. “Like, wow, I can go back and see the 1930s on my computer randomly at 9 p.m.”

A friend suggested starting a podcast together about old Hollywood in hopes of bolstering their college applications. As Elias began to do research, she discovered that her attachment to the Golden Age of Hollywood was more than just a fun interest — her great-great-grand uncle was the blacklisted Jewish screenwriter H. S. Kraft.

Born Hyman Solomon Kraft, he was known professionally as Hy or H.S. Kraft to avoid antisemitism. Among his best-known credits are the comic musical Top Banana, starring Phil Silvers, and the Lena Horne film Stormy Weather. In the early 1950s, bandleader and author Artie Shaw (born Arthur Jacob Arshawsky) connected Kraft to the Communist Party in comments to the House Un-American Activities Committee. Like many other artists at the time, Kraft found himself blacklisted despite lack of evidence. In order to continue writing, Kraft began working under the pseudonym Harold Kent.

After learning about her family history, Elias threw herself deeper into Hollywood history.

“I reached out to all my family. I looked in all the archives,” Elias said. “It was really kind of another window into the real life working world of Hollywood at the time.”

At 15 years old, Elias’ marshaled her research into a book. The resulting tome, A Teenage Take on Hollywood’s Golden Age, explores the history of classic films and the lessons contemporary audiences can take from them. For Gen Z viewers especially, Elias presents movies that may seem outdated in a way that is more accessible and relatable. She dedicated an entire chapter exploring the prominent role Jews played in creating Hollywood.

Despite the fact that Jews were integral to the Hollywood studio system, their stories were often not shown on television. Elias writes in her book that antisemitism dissuaded writers and directors from having Jewish elements in their movies. Joseph Breen, a censor in charge of making sure films followed the Motion Picture Production Code — a set of rules also known as the Hays Code that forced movies to follow certain moral guidelines —  accused Jews of putting “sex, violence, and moral depravity” into films. Some government officials also believed Jewish media moguls were secret Communist agents. Elias said that having her ancestor’s story as an example of the persecution in Hollywood gave her a new perspective on the risks writers had to consider in their work.

Soon after being blacklisted, Kent moved to London, but found much fewer opportunities for film work. “I don’t think his career ever really recovered,” Elias said.

In her research, Elias found that It’s Jews weren’t the only ones pushed off screen by McCarthyism and the Hays Code era of Hollywood. All sorts of stories were written out of Hollywood at the time, as studios attempted to push wholesome, Christian narratives. that Elias is interested in uncovering, but also feminist perspectives that have been erased from discussions of classic Hollywood.

“Culture has always gone in waves and so non-monogamy was actually really popular in the early 1930s in film and so were working women,” Elias explained. “When the Hays Code actually outlawed all that in movies, we sort of forgot that even happened.”

Elias continues to do film analysis on her Instagram page in a series called “Girls on Film” and hopes to write more books about Hollywood. She’s presenting this month on the Turner Classic Moves channel as part of their Kid Fans series. But it hasn’t been easy for Elias to be taken seriously in an industry primarily dominated by men — and people much older than her.

“There’s a certain amount of time that I’ve been alive so I can’t have seen every movie like Leonard Maltin has,” Elias said. “That doesn’t mean that I don’t have something to say about the movies I have seen.”

The post Decades after her ancestor was blacklisted from Hollywood, this teenager is bringing her family’s history to light appeared first on The Forward.