In Colorado, the group has chapters in Boulder and Denver. “We are a local chapter of the global initiative Run For Their Lives,” the group wrote on Facebook.

Run for their lives is a global organization that walks and runs in support of the hostages still being held by Hamas. It's the same group that was attacked in Boulder, Colorado last weekend.

Sunday's attack in Boulder targeted a group called Run for Their Lives, which raises awareness about the hostages held by Hamas in Gaza. Now, they're figuring out how to move on.

Run for Their Lives has vowed to continue until the last of the hostages taken into Gaza return home. There remain 58 hostages in captivity, ... 2025, in Boulder, Colorado.

Rachel Amaru, an organizer with Run for Their Lives' Boulder chapter, told CBS News the attack was "blatantly antisemitic." Mohamed Soliman, 45, was arrested by police on Sunday.

In Chicago a Run for Their Lives chapter walked three hours before the attack in Boulder. Brooks said his group will not be intimidated. But he said future meetups may look different.