The mob didn't know at first what Roberto Bernal had done, but he was running and that was enough.
Dozens of men loitering on the sidewalk next to a supermarket kicked and punched the 42-year-old until he was bloodied and semi-conscious. After all, they had been robbed of cell phones, wallets and motorcycles over the years, and thought Bernal had a criminal's face.
Then a stooped, white-haired man trailing behind told them he'd been mugged.
The mob went through Bernal's pockets and handed a wad of bills to the old man: The equivalent of $5. They doused Bernal's head and chest in gasoline and flicked a lighter. And they stood back as he burned alive.
"We wanted to teach this man a lesson," said Eduardo Mijares, 29. "We're tired of being robbed every time we go into the street, and the police do nothing."