What to Know About the Boulder, Colorado, Attack and Suspect

A man threw Molotov cocktails on people in Boulder, Colo., who were marching peacefully on Sunday in support of the hostages seized during the 2023 Hamas-led assault on Israel, injuring a dozen people in an attack that he had planned for a year, the authorities said.

Eight of those injured were hospitalized with burns, officials said.

The suspect, Mohamed Sabry Soliman, 45, of Colorado Springs, Colo., yelled “free Palestine” as he threw the Molotov cocktails, and he later told investigators that he wanted to “kill all Zionist people and wished they were all dead,” an FB.I. affidavit states.

The attack intensified deep unease in the Jewish community in the United States. In recent months, two Israeli embassy aides were murdered in Washington, and a man set fire to the residence of Gov. Josh Shapiro of Pennsylvania, who is Jewish.

Who are the victims?

According to an F.B.I. affidavit, Mr. Soliman threw to two lit Molotov cocktails on participants in a weekly event called Run for Their Lives that is held in cities around the world. It is intended to call attention to the hostages taken by Hamas militants in the Oct. 7, 2023, terrorist attacks in Israel.

Eight people were burned and four other people later came forward with minor injuries, officials said. The names of the injured were not immediately released. The burn victims — four men and four women ranging in age from 52 to 88 — were hospitalized with injuries ranging from minor to serious. At least two of them were flown by helicopter to a burn unit in Denver.