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FRESNO, Calif. (CBS) — Shortly after former first lady Barbara Bush’s death on Tuesday, a California college professor begged to differ with the glowing tributes pouring in from around the country. Instead, she called Mrs. Bush an “amazing racist who… raised a war criminal,” sparking public outcry.

Randa Jarrar is an award-winning novelist and professor at California State University Fresno, according to her bio on the school’s website. On Tuesday night, Jarrar sent out several tweets lambasting the late first lady.

“Barbara Bush was a generous and smart and amazing racist who, along with her husband, raised a war criminal,” Jarrar wrote in one tweet which immediately drew negative attention online.

warcrime 1 Fresno State Professor Under Fire For Racist Barbara Bush Rant

Photo Credit: Twitter/Randa Jarrar – Via CBS News

The professor, whose bio says she grew up in Kuwait and Egypt and moved to the U.S. after the Gulf War, continued her criticism of the Bush family and the war in Iraq, and defended her tweets against those who took offense.

“PSA: either you are against these pieces of [expletive] and their genocidal ways or you’re part of the problem,” Jarrar wrote in another tweet, “that’s actually how simple this is. I’m happy the witch is dead. can’t wait for the rest of her family to fall to their demise the way 1.5 million iraqis did.”

screen shot 1 Fresno State Professor Under Fire For Racist Barbara Bush Rant

Photo Credit: Twitter/Randa Jarrar via CBS News

In one reply tweet, she appeared to boast about being a tenured professor, implying that the university could not fire her over such comments. “Sweetie i work as a tenured professor. i make $100K a year doing that. i will never be fired,” she replied to one Twitter user who said when Jarrar starts “loosing writing gigs” she won’t think it’s funny.

In another tweet, she tagged the Twitter handle of the university’s president, and argued it was her right to free speech that would protect her.

screen shot 2 Fresno State Professor Under Fire For Racist Barbara Bush Rant

Photo Credit: Twitter/Randa Jarrar via CBS News

Cal State Fresno released a statement Tuesday night extending condolences to the Bush family and distancing the university from the professor’s views.

“We share the deep concerns expressed by others over the personal comments made today by Professor Randa Jarrar, a professor in the English Department at Fresno State,” Fresno State President Joseph I. Castro said in a statement.

The statement went on to say Jarrar’s comments “were made as a private citizen, not as a representative of Fresno State,” and said her views are contrary to the university’s core values.

On Wednesday, Jarrar made her Twitter account private. It has been reported that she was already on a planned leave and has not been teaching classes this semester.

The university’s provost, Lynnette Zelezny, referred to the professor’s comments as “disrespectful” during a news conference Wednesday, and said the school is taking the situation “very seriously.”

“We understand the concern from the community and we are taking this very seriously,” Zelezny said, according to The Fresno Bee. “To answer the technical question: Can she not be fired? The answer is no.”