Chilling video footage obtained by The Post captures a Manhattan subway slashing victim screaming in agony just seconds after the random attack — and pleading for help while sitting in a pool of blood.
“Pull the emergency brake! Pull the emergency brake!” the 28-year-old victim can be heard sobbing. “No! No!”
The footage was shot by the victim around 4:30 p.m. Sunday on a southbound No. 4 train as it neared the Brooklyn Bridge-City Hall station — in what was one of three unprovoked slashing attacks in fewer than 20 minutes.
“I was on the train, texting my boyfriend,” the victim, whose name is being withheld by The Post, told ABC7-News.
“Some random guy walked past me and sliced me — I don’t know what he used — and nonchalantly walked away. My body was in shock. I didn’t feel the pain right away.
“My first instinct was to get a video of him, and then [I] looked down and saw the blood coming down.”
The video shows someone wearing white shoes standing in front of the wounded woman and then appearing to walk past her — although it’s not clear if it is her attacker.
Police on Tuesday busted alleged serial slasher Kemal Rideout, 28, and charged him with three counts of felony assault on three different women Sunday, including the victim who shot the video after she was slashed.
“She is a hero,” the woman’s mother told The Post on Wednesday. “She picked herself up. She did good. She got up and dragged herself through the train with her wounds and got a shot of him.
“He was walking away slowly,” she said. “He was walking nonchalantly. He didn’t run. He brought no attention to himself at all. You could see him going through the door. He was at the tip of the door. He looked back. He saw my daughter filming. He went through and shut the door.
“Her mental state will never be the same,” she added. “She will always be looking behind her back. I need her to see a therapist. Her mental state is not good. She has to speak about it.”
Rideout allegedly first attacked Bianchelly Diplan, 19, at the 86th Street and Lexington Avenue station on the Upper East Side around 4:15 p.m., then a second woman at the station before hopping back on the train.
Diplan told The Post this week she was walking up the stairs at the station to pick up a Father’s Day cake for her dad when the creep came up behind her and slashed her leg.
“I didn’t know he was behind me on the stairs,” she said. “I felt the cut. It felt like somebody cut me deeply. I looked back at him, and he just stared at me, then walked way. I just started crying.”
Diplan said she needed 19 stitches to close the gash.
The downtown victim was the most seriously injured — and required a tourniquet to close the gash before she was rushed to Bellevue Hospital, where she was treated for the wound and later released.
Shocking photos provided by her family show the severity of the injury, with the cut seeming to go down to the bone — and requiring multiple stitches to seal.
Rideout, who has five prior arrests in New York, including for assault, forcible robbery and attempted rape, also has a history of mental illness, according to law-enforcement sources.
He was awaiting arraignment Wednesday.