Terror Probe as People ‘Set on Fire’ During Colorado Demonstration
Eight victims suffered burns after callers reported that a man was setting people on fire.
A man wielding weapons including a makeshift flame thrower was arrested after a shocking attack that wounded eight people in downtown Boulder on Sunday afternoon.
The FBI said it was investigating a “targeted terror attack” in Colorado after Mohamed Sabry Soliman, 45, used a makeshift flamethrower and threw an incendiary device at a group of demonstrators calling for the release of hostages in Gaza.
Boulder Police said eight people aged 52 to 88 were wounded in the incident. All victims were taken to hospitals in Boulder and the Denver metro area. At least one was in critical condition, while others suffered various injuries. The suspect was also hurt and taken to a hospital for examination.
Boulder Police Chief Stephen Redfearn speaks about an attack that injured multiple people in what the FBI called a "targeted" act of terror.
BOULDER POLICE DEPARTMENT/via REUTERS
“This attack happened at a regularly scheduled weekly peaceful event,” FBI Special Agent Mark Michalek said in a Sunday evening news conference. “The suspect was heard to yell, ‘Free Palestine’ during the attack.”

Elizabeth Brockway/The Daily Beast
Boulder Police chief Stephen Redfearn said the attack occurred on Pearl Street–a pedestrian mall–where several callers reported an armed man around 1:26 p.m.
ADVERTISEMENT
“The initial callers indicated that there was a man with a weapon and that people were being set on fire,” he said. “This was a beautiful Sunday afternoon in downtown Boulder on Pearl Street and this act is unacceptable.”
Sign Up for Our Cheat Sheet Newsletter
By clicking “SUBSCRIBE” you agree to our Terms of Use and Privacy Policy.
FBI Director Kash Patel said agents and local law enforcement were at the scene “fully investigating a targeted terror attack.”
We are aware of and fully investigating a targeted terror attack in Boulder, Colorado. Our agents and local law enforcement are on the scene already, and we will share updates as more information becomes available. @FBI
— FBI Director Kash Patel (@FBIDirectorKash) June 1, 2025
Redfearn said the pro-Israel demonstration is held frequently on Pearl Street Mall.
“As a result of these preliminary facts, it is clear that this is a targeted as an act of terrorism,” Michalek said.
Boulder’s Jewish Community said in a statement that the demonstrators were participating in the Run for Their Lives Walk, a movement raising awareness and calling for the immediate release of hostages held by Hamas.
“Our hearts go out to those who witnessed this horrible attack, and prayers for a speedy recovery to those who were injured,” the Jewish group said. “When events like this enter our own community, we are shaken. Our hope is that we come together for one another.”
Joint Statement from Boulder’s Jewish Community We are saddened and heartbroken to learn that an incendiary device was...
Posted by Boulder JCC on Sunday, June 1, 2025
Colorado Governor Jared Polis said he was monitoring the situation.
“My thoughts go out to the people who have been injured and impacted by this heinous act of terror,” he wrote on X. “Hate-filled acts of any kind are unacceptable.”
State Secretary Marco Rubio offered up prayers for the victims, adding that “terror has no place in our great country.”
The Colorado attack followed the fatal shooting of a couple working for the Israeli embassy in Washington, D.C. last month.
“Sadly, attacks like this are becoming too common across the country,” Michalek said.
Register below to read this article for free or subscribe
to unlock unlimited access to The Daily Beast.
Monthly
$1
First month then $5.99/month
Annual
$35
First year then $59.99/year
Premium
$79
First year then $119.99/year
*Substack access provided by the next business day, using your subscription email. Choosing the Premium plan constitutes your permission to share your subscription email with Substack and your agreement to Substack’s Privacy Policy.
Already have an account? Sign In
Looks like you already have a subscription!
You're all set!
Thanks for subscribing.
