What started out Sunday night as a suspected sexual encounter involving two men and a woman ended with one of the male lovers getting pounded with a baseball bat and stabbed to death.
The 20-year-old victim was discovered unresponsive in the Park Slope section of Brooklyn after sustaining at least five stab wounds to his chest and back.
Police were summoned to the scene at 355 16th street at around 4am and found the victim lying in the first-floor hallway of the apartment building.
The victim was rushed to Brooklyn Methodist Hospital, where he was pronounced dead about 30 minutes later. The NYPD was withholding his name pending the notification of family members.
The New York Daily News reported, citing unnamed police sources, that the deadly violence had been preceded by an amorous encounter involving the 20-year-old victim, another man and a woman, both aged 21.