The unhinged man who is in custody for allegedly stabbing multiple people in Queens — even laughing in one victim’s face — over the past two weeks was identified as a 27-year-old greeter for a New York City hospital, according to law enforcement sources.

Jermain Rigueur was taken into custody Wednesday after the NYPD began a frantic manhunt for the alleged stabber who cops say randomly targeted at least five victims in the Big Apple borough.

Rigueur, who lives in Queens, works as a greeter at Woodhull Hospital in Brooklyn, sources said.

No charges have been filed.

The five victims were all wounded when they were stabbed by a hunting knife, police said.

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