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‘Beloved member of Boulder community’: Firebombing victim Karen Diamond dies

“This horrific act is part of a broader and deeply troubling rise in antisemitic violence across the United States,” the Federation stated.

An Israeli flag stands in a bed of flowers as caution tape blocks off a deserted Pearl Street on the scene of an attack on demonstrators calling for the release of Israeli hostages held in Gaza, in Boulder, Colo., on June 1, 2025. Photo by Eli Imadali/AFP via Getty Images.
An Israeli flag stands in a bed of flowers as caution tape blocks off a deserted Pearl Street on the scene of an attack on demonstrators calling for the release of Israeli hostages held in Gaza, in Boulder, Colo., on June 1, 2025. Photo by Eli Imadali/AFP via Getty Images.

Multiple Jewish organizations offered condolences after Karen Diamond, 82, a victim of the antisemitic firebombing in Boulder, Colo., on June 1, died from her injuries.

“This horrific act is part of a broader and deeply troubling rise in antisemitic violence across the United States,” the Jewish Federations of North America stated. “It is no longer possible to separate online hate, city hall rhetoric and campus incitement from real-world consequences. Our communities are being targeted—for being Jewish, for speaking out, for simply showing up.”

“We are devastated by the loss of this beloved member of the Boulder community,” stated Susan Rona, regional director for the Anti-Defamation League. “Her death highlights the danger of antisemitic rhetoric becoming normalized in our country, resulting in increasing levels of violence aimed at the Jewish community.”

The Boulder District Attorney’s Office stated that 29 people were victims of the attack, including 13 who suffered physical injuries. At least one victim remains hospitalized.

The district attorney’s office stated that it is amending the counts of criminal attempt to commit first-degree murder to first-degree murder. “Those two murder counts each pertain to the one victim who has passed away,” it said.

Michael Dougherty, the city district attorney, stated that “this horrific attack has now claimed the life of an innocent person who was beloved by her family and friends.”

“Our hearts are with the Diamond family during this incredibly difficult time. Our office will fight for justice for the victims, their loved ones and the community,” he stated.

“Part of what makes Colorado special is that people come together in response to a tragedy,” he added. “I know that the community will continue to unite in supporting the Diamond family and all the victims of this attack.”

Rep. Joe Neguse (D-Colo.) stated that the death is “a devastating and profound loss for our Boulder community.”

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