Karen Diamond, one of the people burned in the antisemitic firebombing attack on the Pearl Street Mall earlier this month, died Wednesday.

“There are simply no words to properly express the pain of this tragic loss,” Boulder Jewish Community Center Executive Director Jonathan Lev and JCC Board Chair David Paul said in a Monday morning email. “Karen was a cherished member of our community, someone whose warmth and generosity left a lasting impact on all who knew her.”

Diamond, 82, was among the people attacked June 1 while participating in a walk by the group Run for Their Lives, which advocates for the release of the remaining 50 hostages held by Hamas since an October 2023 attack on Israel.

As a result of Diamond’s death, the Boulder County District Attorney’s Office announced that it was to file additional charges — including first-degree murder — against Mohamed Sabry Soliman, who is accused in the Pearl Street attack.

“In addition to charges related to her death, the extensive investigation has led to more victims being identified,” the DA’s Office said in a Monday morning release. “Criminal charges are now being filed in connection with those additional victims.”

Soliman, 45, is accused of firebombing the group, which was originally reported to have injured 15 people and one dog. He was recently indicted with nine hate-crime counts, two charges that he used a fire or explosive device to carry out a felony, and a single count of carrying an explosive during the commission of a felony.

“In addition to amending Counts 4 and 5 to reflect the death of Karen Diamond, the District Attorney’s Office added 66 counts.

“These counts are related to 14 additional victims who have now been identified through the ongoing investigation,” the DA’s Office said in the release.

“In total, the amended complaint names a total of 29 victims in the attack. Of the 29 victims, 13 suffered physical injury during the attack. The complaint now contains the 2 counts of first degree murder, 52 counts of attempted first degree murder, 8 counts of first degree assault, 18 counts of attempted first degree assault, 2 counts of third degree assault, 2 counts of using an incendiary device, 16 counts of attempted use of an incendiary device and one count of animal cruelty.”

The additional 14 victims of the attack include people who suffered injuries, but not burns, while fleeing the attack and people who came forward or were identified by law enforcement as people who were in close enough proximity to the attack to be victims of attempted murder despite not being physically harmed, DA Michael Dougherty explained.

Dougherty added that there are “a couple of victims who are still receiving medical care” and that “we hope and wish” they will recover. He called Diamond’s death “tragic and terrible.”

“She was clearly very much loved by her family, friends and other members of the Jewish community,” Dougherty said in an interview with the Daily Camera. “I just feel terrible for her family that they’re going through this.”

The DA’s office said that Diamond’s family has asked “for privacy as they continue to grieve.”

Diamond was active in the Boulder community.

She was once the president of the Boulder University Women’s Club, or UWC, and served as a board member. UWC is a community-building organization that is made up of members or friends of the University of Colorado Boulder.

In 2019, Diamond received the UWC’s Margaret Willard Award. The award is given annually to a woman in the Boulder area who demonstrates outstanding work in her profession or passion, enhances women’s quality of life on the campus or in the Boulder community, is an exceptional role model, elevates women, and brings honor to all women and to the university or community, according to the UWC.

“That’s only a partial description of the Karen we knew and loved,” Andrea Kutinsky, president of the UWC, wrote in an email to the Daily Camera. “In addition, she was a warm and welcoming woman who always made you feel that you were the most important person in her life as she spoke to you.”

According to Diamond’s biography on the UWC website, she worked with Boulder Bridge House, which provides services to adults experiencing homelessness. She was also a longtime supporter of Historic Boulder.

Melanie Muckle, office administrator at Historic Boulder, told the Daily Camera that Diamond had been with the organization “through thick and thin.”

Diamond’s biography adds that she made deliveries to elderly and immobile members of her synagogue; helped reconstruct the synagogue after the 2013 flood; was active in the Chautauqua music festival; and supported the Boulder Philharmonic and programs at CU’s music college.

“In every organization and community function in which Karen has participated, she has contributed significantly to growth and development with her volunteerism, her leadership, and her gracious good will,” Diamond’s biography reads.

Gov. Jared Polis issued a statement on social media Monday.

“I am devastated to hear of Karen Diamond’s passing. This loss is deeply felt by the Boulder community and our entire state, particularly within our strong Jewish community,” Polis said. “My heartfelt condolences go out to her friends and family. Karen was taken from us too soon, and we mourn her loss while remembering her life and the impact she had on those who loved her.”