'Affluenza' Teen Being Investigated After Beer Pong Video Appears on Twitter

Authorities tell PEOPLE they are investigating claims the 18-year-old violated his probation

A prosecution source confirms to PEOPLE that the Texas teenager who was spared jail time after killing four pedestrians while driving drunk in 2013 is being investigated for possible probation violations.

The source says claims that the 18-year-old violated his probation are being looked into after a video was posted to Twitter Wednesday.

The video depicts several young men playing beer pong and purportedly features footage of Ethan Couch, who’d used “affluenza” as his legal defense two years ago.

Couch was 16 when a judge sentenced him to 10 years probation. At his sentencing, a psychologist called by the defense successfully convinced the court that Couch was a product of “affluenza” and therefore, unable to comprehend the consequences of his actions.

The blame was directed, instead, at his wealthy parents, who allegedly never set limitations for their son.

• Want to keep up with the latest crime coverage? Click here to get breaking crime news, ongoing trial coverage and details of intriguing unsolved cases in the True Crime Newsletter.

Couch had testified that he couldn’t remember pulling out of the driveway on the night of the June 15, 2013, crash.

When asked what he remembered after getting into the vehicle, Couch answered, “Waking up handcuffed to the hospital bed.”

Couch’s blood alcohol level was three times the legal limit that night, and he ended up pleading guilty to four counts of intoxication manslaughter and two counts of intoxication assault.

Victims were stunned by the judge’s imposition of probation, feeling such a sentence was far too light.

The source confirms that Couch’s probation terms prohibit him driving or using drugs and alcohol. Any violation of those terms could result in a jail sentence of up to 10 years, the prosecution source explains.

The man in the footage suspected to be Couch does not appear to be holding anything in his hands, but merely claps as another man dives into a table, collapsing it.

A hearing is set for this spring, after Couch’s 19th birthday. The prosecution has asked a judge to move the case from juvenile to adult criminal court.

Couch’s lawyer couldn’t be reached for comment Friday.