Grandpa and grandma parents are 6 year old boy living with drug "toxic smoke"

The morning of February 12th 7, two Nanjing Itabashi police station on duty, found in a family of four drugs, and 6 year old boy because of long life in the "gas", the urine test results were also positive. It's so cold in the early morning, who has nothing to open the window? And how will the house from the white smoke? With doubt, the police knocked on the tenants door, opened it, the living room stood out on drug tools, 4 adults are drug addicts, next to a 5,...