When Olvera-Carrera was moved to the bus , the officers dragged his paralyzed body across the ground , Perez said .
When Olvera-Carrera was moved to the bus , Perez said the officers dragged him across the ground .
The Organization of Petroleum Exporting Countries defied expectations on Wednesday and lowered its output ceiling by 900,000 barrels a day to 24.5 million barrels starting in November .