21-year-old with autism missing in Snohomish Co.

ARLINGTON, Wash. - Authorities in Washington are searching for a 21-year-old man with autism who went missing in the Arlington area on Sunday.

Jonathan Hoang was last seen at 7:30 p.m. on March 30. According to a family member, Hoang left his home on 114th Drive Northeast between Sunday evening and Monday morning without a jacket, his shoes, and his phone.

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Hoang is possibly wearing black slip-on shoes, a green shirt and khaki pants. He may also be carrying his iPad.

Jonathan is also autistic, but is verbal. He can hold a conversation and will respond to his name. However, he may not have the skills to seek help, and likely doesn't know how to make himself visible for searchers.

For searchers, Hoang's family says he often rocks or paces, sits with his shoulders hunched forward, has a vocal stim that sounds like "hmm," and can become stiff and shut down in a stressful situation.

Snohomish County, King County, and Island County deputies, along with Search and Rescue crews, are actively looking for Hoang. They ask anyone living nearby to check home surveillance cameras.

If you see Jonathan, have seen him since late Sunday, or have any information on his whereabouts, please call 911.

The Source: Information in this story is from the Snohomish County Sheriff's Office and a family member of Jonathan Hoang.