A Minnesota protestor made the following claim:
"Media, you need to cover the undercover cops who have been breaking these windows and breaking into businesses. We have evidence of buildings that have been burnt on fire by specific triangles cut out. These kids are not equipped to do those types of things."
Assuming that what she said was true, it seems more likely that these were state actors (either U.S. or foreign), and not "undercover cops".
Is there any evidence to back this up?