Police say a man’s fatal stabbing inside of a Park Slope apartment building could have been the result of a sexual encounter gone wrong.

Manos Ikonomidis, 20, was found stabbed to death inside of 355 16th St. Monday around 4 a.m., police say.  

According to investigators, Ikonomidis was killed while leaving the building after a sexual encounter with a man and a woman went wrong.

Police say he was struck with a baseball bat and stabbed at least five times. Published reports say Ikonomidis' girlfriend received messages explaining that “it had been taken care of.”

Investigators say they are reviewing surveillance video from the hallway of the building and are looking for at least two suspects.