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(CNN) -- So-called "affluenza" teen Ethan Couch and his mother have been detained by Mexican authorities near a popular Pacific resort town, officials briefed on the matter told CNN. 
       Couch, 18, went missing earlier this month in Texas where he was under probation for a 2013 drunk driving crash that killed four people and drew nationwide attention over his lawyers' use of his privileged upbringing as part of their defense at trial.
       He and his mother were detained near the Mexican beach resort of Puerto Vallarta, roughly 950 miles from home, officials told CNN on Monday. 
      The teenager is expected to be turned over to the U.S. Marshals Service, which has spent weeks searching for him. A spokesman for the service declined to comment Monday.
      Couch is wanted by authorities in Tarrant County, Texas, for allegedly violating his probation. His mother, Tonya, was listed by Texas authorities as a missing person after her son's disappearance, and the authorities said they believed she was assisting him.
ABC News/Jalisco's prosecutor
(CNN) -- So-called "affluenza" teen Ethan Couch and his mother have been detained by Mexican authorities near a popular Pacific resort town, officials briefed on the matter told CNN. Couch, 18, went missing earlier this month in Texas where he was under probation for a 2013 drunk driving crash that killed four people and drew nationwide attention over his lawyers' use of his privileged upbringing as part of their defense at trial. He and his mother were detained near the Mexican beach resort of Puerto Vallarta, roughly 950 miles from home, officials told CNN on Monday. The teenager is expected to be turned over to the U.S. Marshals Service, which has spent weeks searching for him. A spokesman for the service declined to comment Monday. Couch is wanted by authorities in Tarrant County, Texas, for allegedly violating his probation. His mother, Tonya, was listed by Texas authorities as a missing person after her son's disappearance, and the authorities said they believed she was assisting him.
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Story highlights

Access to money and pressure to succeed are challenges for affluent kids, psychologists say

Wealthy kids more likely to suffer drug and alcohol abuse, depression and anxiety than national average, per research

Editor’s Note: Kelly Wallace is CNN’s digital correspondent and editor-at-large covering family, career and life. Read her other columns, and follow her reports at CNN Parents and on Twitter.

CNN —  

Most people had probably never heard the term “affluenza” until Ethan Couch’s legal team used it as a defense in his trial for driving drunk and killing four people in Texas. And, judging by the robust online conversations, most think the claim that Couch was so spoiled by his parents that he didn’t grow up with boundaries and realize the consequences of his actions was a ridiculous argument for why he shouldn’t be held accountable for his crimes.

Couch’s decision to head to Mexico, a violation of his 10-year probation sentence, accompanied by his mother has only heightened the criticism of him and his upbringing.

But psychologists around the country say there is something here that society should not overlook: There is growing evidence that children of the affluent are becoming “increasingly troubled, reckless and self-destructive,” wrote Suniya Luthar, a professor of psychology at Arizona State University along with Barry Schwartz, professor of psychology at Swarthmore College, in a blog post for Reuters titled “Sometimes ‘poor little rich kids’ are really poor little rich kids.”