An affluent Texan teenager who killed four people while driving drunk was sentenced to 10 years probation and ordered to get therapy, despite the prosecution seeking a 20 year jail term.
A psychologist for the defence said the teen suffered from "affluenza", a condition where a person feels shielded from problems by money and having led a life of privilege paid for by his parents, local media reported.
The decision by a Texas court has sparked a backlash and complaints of a miscarriage of justice.
The teen driver had three times the legal limit of alcohol in his system at the time of arrest, prosecutors said.
He was driving a pick-up truck when he ran down four people who were helping fix a vehicle at the roadside near Dallas.