Cause of death undetermined for autistic teenager Avonte Oquendo

The 14-year-old was missing for months before his remains were found in January. (2/27/14)

NEW YORK - The city's medical examiner's office says that the cause and manner of death cannot be determined for a 14-year-old autistic boy who was missing for several months. 

Avonte Oquendo disappeared from his Queens school back in October, setting off a massive citywide search that came to a tragic end in January. 

The teen's remains were discovered near the East River, several miles from where he was last seen.  

MORE: Missing Person Cases

A lawyer for the family has filed a notice of claim, which is the first step in suing the city. 

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