ADL Deeply Saddened to Learn of a Fatality in Boulder Firebombing Attack
Death is third this year attributed to antisemitic violence
Denver, CO, June 30, 2025 … ADL (the Anti-Defamation League) is deeply saddened to learn of the death of Karen Diamond resulting from injuries sustained during the antisemitic firebombing in Boulder, Colorado, at a peaceful Run for Their Lives walk to bring attention to the hostages being held by Hamas.
The victim had remained hospitalized since the horrific antisemitic attack on June 1. She is the third person killed in an act of antisemitic violence in 2025 while participating in local community gatherings.
“We are devastated by the loss of this beloved member of the Boulder community. Her death highlights the danger of antisemitic rhetoric becoming normalized in our country, resulting in increasing levels of violence aimed at the Jewish community,” said Susan Rona, ADL Mountain States Regional Director.
“This heinous attack, which came just a week after the fatal shooting of a young couple in Washington, demonstrates the urgent need for elected officials and community leaders to take immediate action to stop antisemitism,” said Jonathan Greenblatt, ADL CEO. “Our thoughts and prayers are with the victim, her family and the Boulder Jewish community.”
The total number of victims identified in the attack is now up to 29 individuals, including 13 who suffered physical injuries, according to a statement released today by the Boulder District Attorney’s Office. At least one victim remains hospitalized.
The suspect, Mohamed Sabry Soliman, 45, faces multiple state charges, including two counts of first degree murder, 52 counts of attempted first degree murder, eight counts of first degree assault, 18 counts of attempted first degree assault, two counts of third degree assault, two counts of using an incendiary device, 16 counts of attempted use of an incendiary device and one count of animal cruelty, according to the Boulder District Attorney’s Office. According to an indictment released last week from the U.S. Attorney’s Office for the District of Colorado, the suspect also faces 12 federal hate crime charges and could face a life sentence if convicted.
ADL is the leading anti-hate organization in the world. Founded in 1913, its timeless mission is “to stop the defamation of the Jewish people and to secure justice and fair treatment to all.” Today, ADL continues to fight all forms of antisemitism and bias, using innovation and partnerships to drive impact. A global leader in combating antisemitism, countering extremism and battling bigotry wherever and whenever it happens, ADL works to protect democracy and ensure a just and inclusive society for all. ADL’s Mountain States Region covers Colorado, New Mexico and Wyoming. More at https://mountainstates.adl.org/.
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