#’You’re going to die today’

A 30-year-old Brooklyn straphanger was randomly slashed in the face by a subway maniac who told his victim he was going to “die today,” cops said Sunday.

The chilling incident happened around 10 a.m. Saturday on a J train in the Kosciuszko Street/Broadway station, when the victim was approached by the knife-wielding man in his 30s, police said.

“Why are you following me?” the suspect asked the man, according to police. “You’re going to die today.” 

The attacker then slashed the victim once on the left side of his face, cops said. The victim was rushed to Wyckoff Medical Center, where he needed three stitches, police said.

The slasher is still in the wind.