Monday in Ferguson began, as most mornings have for the past week, with local business owners cleaning up debris and assessing damage from the vandalism and looting of the night before.

“At least in Iraq you know who the enemy is,” said Air Force veteran Virgil Smith, 48, of Florissant. He was driving through the area, saw the broken storefront window at Rehoboth Pharmacy on West Florissant and stopped to help sweep up. “Here you never know. They are all blended in with the community.”

The owner, Idowu Ajibola, was doing an inventory. Looters took some pain medication and Xanax, he said. They also stole hair products. Replacing the glass will probably cost $6,000, Ajibola said, “and what they took is probably just 10 percent of that.” He figures they didn’t get more because he had turned off all the security lights inside the store when the rioting began and the looters couldn’t see what was inside.

Sunday night’s violence had been, by most accounts, the worst yet, frustrating officials who have used a series of rotating responses to end looting and violence.