The death of Karen Diamond, 82, has turned the attack in Boulder, Colo., on marchers for Israeli hostages into a possible death-penalty case.

An 82-year-old woman burned in an antisemitic firebombing in Boulder, Colo., earlier this month has died, authorities said Monday, prompting an upgrade in charges against the person suspected of carrying out the attack.

One of the victims of an anti-Semitic attack on a protest in Colorado died of her injuries last week, according to the Boulder County District Attorney’s office. 82-year-old Karen Diamond was fatally injured by Mohamed Soliman,