The Brief A person of interest has been taken into custody related to two people being stabbed on the Upper West Side. A person of interest has been taken into custody related to two people being stabbed on the Upper West Side. Person of interest custodyWhat we know:The police are reporting that NYPD responded to a call related to an assault in the vicinity of West 84th and Central Park West. They then found a 50-year-old man with a stab wound near West 86th and Amsterdam Ave. Police officials on the scene are currently investigating the situation to see if it constitutes a hate crime.