An autopsy conducted by the New York City Medical Examiner’s Office has determined the Brooklyn designer Jay Ott’s cause of death was drowning and the manner of death is undetermined, according to spokeswoman Julie Bolcer.

A New York City Police Department spokesman said Monday that the case will stay open.

This story first appeared in the June 24, 2014 issue of WWD. Subscribe Today.

Ott’s body was found May 9 in the East River near Pier 4 in Bushwick. At the time of his death, the 31-year-old was design director for Crippen and Rosetta Getty at The Dock Group.

As reported, the NYPD said that surveillance footage showed that Ott was last spotted at 9:50 p.m. on March 22 in his apartment building — The McKibbin Lofts at 248 McKibbin Street. Beatrice Kim, who works at The Dock Group, had said there was additional footage that spotted him twice before dawn on March 23. A video camera filmed Ott leaving his building at 4:35 a.m., and another camera outside of a bodega about a mile away northwest of McKibbin Lofts filmed Ott walking by around 4:51 a.m., heading toward Manhattan.

For weeks this spring, Ott’s father Robert lead a civilian search for his son, canvassing neighborhoods in Brooklyn and Manhattan and putting up “missing” posters. Ott had not been in touch with his friends and family since March 22, according to the NYPD.

Robert Ott could not be reached for comment Monday.