On a raw November day in East Boston, just five days before Thanksgiving, a shirtless man lay facedown on the cold pavement of the district courthouse alley.
Alejandro Orrego Agudelo, 27, screamed, “Help me, please,” as an Immigration and Customs Enforcement (ICE) agent knelt on his back.
Around him, more than 50 neighbors pressed up against a Boston police line — phones raised and recording — while the city officers barked at the bystanders to get out of the way…