Amofah, 29, was last heard from on June 19 around 8 p.m., the New York Police Department tweeted last week. He was found dead in the East River near the South Street Seaport in Downtown Manhattan less than a week after he went missing, officials said.
Police confirmed to ABC New York station WABC that a body pulled from the East River Monday night off Pier 16 was Amofah. His belongings were found nearby on the Manhattan Bridge, according to the station.
He died by drowning, according to the coroner.
Last week Amofah posted a video in which he apologized for "leaving such a stained legacy," WABC reported. Amofah live-streamed an incident in April in which police responded to his apartment for a possible suicide threat, according to the station.
Amofah's YouTube channel has more than 134,000 subscribers. He also had more than 333,000 followers on Twitter and more than 267,000 followers on Instagram.
Additional information was not immediately available.
ABC News' Christina Carrega contributed to this report.