US Marshals Release Couch's 'Wanted Poster'

to Fox News, U.S Marshalls have joined the hunt for Ethan Couch, the Texas teen whose "affluenza" defense in a deadly DUI crash gained nationwide attention in 2013.

A $5,000 reward was offered Friday for information leading to the capture of a North Texas teenager who received probation after invoking an "affluenza" defense for killing four people in a 2013 drunken-driving crash.

"This is a family that knows how to game the system and has done so from the start", said Tarrant County Sheriff Dee Anderson.

The FBI and US Marshals Service have joined the search for Couch, who is now considered a fugitive. No arrest warrant was issued for Couch's mother Tonya, but Anderson said they were looking for anyone who may be with him or helped him leave the area.

Sources close to the investigation said the teen's father told law enforcement officials the passports of the youth and his mother, with whom he was living, were missing.

Ethan Couch's attorneys blamed his wealthy parents for failing to teach him to be responsible for his actions.

At his trial in February 2014, prosecutors had sought to put him behind bars for 20 years, but State District Judge Jean Boyd slapped him on the wrist with mandatory rehab and ten years' probation for the four people he had killed.

It is a case that has drawn national media attention, but has also drawn the ire of local residents at the Burleson Star's Facebook, many of which again Wednesday expressed their displeasure that Couch was given such a light sentence that put him in position to flee.

Instead of the golden rule, which was do unto others as you would have them do unto you, [Couch] was taught we have the gold, we make the rules at the Couch household.

"The person captioned the video, "[Your] boy Ethan Couch violating probation".

Grisham said officials were interviewing people every day to track Couch and his mother down. He went missing this week and is now believed to be on the run. 'My gut feeling says they've gone a long way, they have the money, they have the ability to disappear and I'm fearing that they may even be out of the country'. Hollie Boyles and her daughter Shelby were helping their friend Breanna Mitchell when her SUV has broken down. Terms of his probation forbid drinking. Ethan Couch is 18 years old, not 19.

"It's one of those times when you hate to say 'I told you so, ' but I told you so", the sheriff said.

The parents of one of the injured teens, who suffered debilitating brain injuries, sued Couch's family for $2 million.

Couch's blood-alcohol level was found to be 0.24, three times the legal limit.

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