The Hunter College professor who made headlines after her husband was kicked off a JetBlue flight for heckling Ivanka Trump is now reportedly receiving loads of hate mail, some of which arrived covered in white powder and feces, according to The New York Post.

The powder has been tested and deemed safe (ie, not anthrax), but police are investigating the as-yet anonymous sender.

Related: Thousands of people want the husband of the man who heckled Ivanka Trump to be fired from his job

The letters were sent to Matthew Lasner’s office on the Upper East Side, and contain slurs like “God hates f*gs” and “Next time you and your f*g husband die.”

Following the confrontation at JFK on December 22, Lasner and his husband, lawyer Dan Goldstein, have received countless vicious tweets and trollish book reviews on Amazon.

The couple, who are based in Cobble Hill, Brooklyn, were kicked off the San Francisco-bound plane when Goldstein began screaming at Ivanka Trump, who was sitting in the coach section as passengers boarded.

Witnesses claim Goldstein yelled, “Your father is ruining the country!”

Related: Donald Trump lashes out at “Hillary flunky” Meryl Streep following historic speech

Minutes beforehand, Lasner tweeted, “Ivanka and Jared at JFK T5. Flying commercial … My husband chasing them down to harass them.”

On Thursday, Hunter college released the following statement:

Hunter College contacted the NYPD immediately after noticing a suspicious package. This is an ongoing NYPD investigation and Hunter is continuing to cooperate.”

“That’s really gross,” said 18-year-old Hunter student Juliette Weiss, after a reporter told her about the letters.

She continued:

Regardless of political opinion people should still be respected. It was out of line for him and his husband to confront Ivanka and her family on the plane. For them to tweet hateful things is not acceptable, but that doesn’t make other people’s hate comments about sexuality or political opinion acceptable either.”

For now, that’s all we know about this firebrand named Juliette Weiss, but we’ll update the story as more info becomes available.