International Manhunt for the 'Affluenza Teen' Ethan Couch

Couch, who was given probation for killing four people while driving drunk, is now missing with his mother.
1:35 | 12/22/15

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Transcript for International Manhunt for the 'Affluenza Teen' Ethan Couch
New developments this evening in the international manhunt for that American teenager you can count. Given probation for killing four people in a drunk driving accident. Now missing since skipping a check in with his probation officer at this evening authorities now officially declaring his mother missing as well. Revealing they believe she's helping him. Here's ABC's Clayton send L. Say Ethan couches on the run tonight possibly in this black Ford truck the belongs to his mother Tonya she's missing now to lead prosecutor. This flu is we didn't shield him at all. Couch is wanted for violating his probation after driving drunk in 2013. Causing a crash that killed four people. He got no jail time after arguing he had so called app flew when's up too rich to know right from wrong. Those people who dealt with and at the accident scene at a post actually she saw absolutely no remorse. On this video surfaced on Twitter investigators say it appears to be couch at a party. Possibly violating his probation. I think that was what triggered it should be a running watched that video. Sure which. The FBI and US marshals have now joined the hunt for coach and his mother putting eakins face on this wanted poster there's now a 5000 dollar reward. Let him get a taste of real person and real goal. Justice. And David officials here say they are receiving hundreds of tips from all around the country. They are also checking credit card phone even passport records but so far no solid leads they say toward finding count or his mother.

This transcript has been automatically generated and may not be 100% accurate.

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