“Jeopardy!” extraordinaire Ken Jennings found himself in hot water Wednesday after he inserted himself into the controversy surrounding comedian Kathy Griffin’s photo holding a fake severed head of President Donald Trump. After Griffin posted the photo, Jennings took to Twitter to mock not Griffin or the president himself, but the president’s 11-year-old son, Barron.

“Barron Trump saw a very long necktie on a heap of expired deli meat in a dumpster. He thought it was his dad & his little heart is breaking,” Jennings tweeted Wednesday.

Read: Twitter Slams Kathy Griffin's Beheaded Trump Photo

The tweet appeared to be in response to a TMZ article that said Barron first glimpsed the Griffin photo on television and thought it was really his father.

“Trump family sources tell us Barron was in front of the TV watching a show when the news came on and he saw the bloody, beheaded image,” the article said. “We’re told he panicked and screamed, ‘Mommy, Mommy!’”

The president himself also said that Griffin’s photograph hurt his youngest son.

“Kathy Griffin should be ashamed of herself. My children, especially my 11 year old son, Barron, are having a hard time with this. Sick!” Trump tweeted Wednesday.

Jennings made a name for himself in 2004 when he won a record-breaking 74 games of “Jeopardy!” for a total of $2.52 million. He cemented his spot as a somewhat public figure by becoming the author of a series of children’s books directed at young children called the “Junior Genius Guides.” His Twitter biography referred to him as “'Jeopardy!' fixture of yesterday. Author of the Junior Genius Guides and a bunch of other stuff.”

Twitter users quickly condemned Jennings’ decision to go after the young boy on Twitter, pointing out that he himself makes a living writing children’s books. Many users called for Simon & Schuster to end their relationship with Jennings after the tweet. Users tweeted the phone number for the publishing house in an effort to get others to call and recommend they stop publishing Jennings’ works.

Donald Trump Jr. responded to other users who said Simon & Schuster should take issue with someone who publishes works for children mocking a child on Twitter.

“Good point, you would think that in this day & age @simonandschuster would have an issue with one of their children’s authors bullying a kid,” Trump Jr. tweeted Thursday.

International Business Times reached out to Simon & Schuster for a comment but had not yet heard back from them at the time of this story.

Read: CNN Fires Kathy Griffin After Comedian Posts Photo Holding Severed Trump Head

Griffin herself publicly apologized for the photograph and said she would ask the photographer to take down the image, but Jennings himself has shown no remorse for his tweet about Barron. Instead, he responded to the social media reaction with yet another mocking tweet.

“I have moved the necktie to one side of the ham but it still looks a little like the president :(,” he wrote.

Jennings, in fact, has a history of controversial tweets.

“Nothing sadder than a hot person in a wheelchair,” he tweeted in 2014.

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