UPDATED: Sneak attack: Guy stabs Fort Greene playwrite in the neck then flees

Shi-no-bi: Do you recognize this guy’s backpack? Police think he stabbed another guy in the neck from behind.

A stealthy attacker stabbed a famous playwrite in the neck in Fort Greene on Sunday evening and then disappeared into the night, police said.

The victim — Tony-award winner David Henry Hwang, according to a Daily News report — told authorities an unknown assailant snuck up from behind him as he was walking on S. Portland Avenue near Lafayette Avenue at 8:50 pm, slashed him, and then fled.

The wannabe ninja didn’t say anything or try to steal anything from Hwang, according to a report.

Fortunately, he was only silent, not deadly — the scribe walked to Brooklyn Hospital after noticing he was bleeding, where doctors patched him up and released him, police said.

Authorities have released a security camera still showing a suspect, but the knife-man is only visible from behind.

Police ask anyone who recognizes the back of this guy’s head or has any other information about the incident to call (800) 577–8477, or submit tips by logging onto www.nypdcrimestoppers.com or by texting 274637, followed by TIP577. All calls are strictly confidential.

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