"It's crazy. I don't understand. Is he sick?" said Dina Perez, still haunted by the brutal beating she suffered, even though police have now arrested and charged 21-year old Aidan Folan with that vicious assault.
That disturbing video shows the suspect walking along side Dina down the stairs. Then suddenly at the bottom he pounces. What seems like an endless beating is caught on a security camera in the 18th avenue subway station back on March 9th.
As Dina told Eyewitness News in an exclusive interview, she pleaded for him to stop.
"Why, why you hit me?," Dina Perez, 55, said she screamed at her attacker. "Why, why you hit me?"
Even as she is sprawled helpless on the ground her attacker keeps punching and brutally kicking her.
"He is strong. He keeps hitting me, hitting me, hitting me, hitting me," Perez said.
The beating left her with a badly bruised and swollen face, bruises on her body and back pain and a broken wrist.
In the end, her attacker didn't take her wallet or jewelry. Instead seen in the video he settles for an envelope with a small amount of cash.
Investigators say Dina identified Aidan Folan in a police lineup before his arrest.
But now, even with the arrest of a suspect, Freddie Perez says his wife is afraid to leave their home.
"She's been inside since this happened," he said.
Dinal also says she now sleeps sitting up because of the pain. Even then, sleep comes fitfully after bouts of uncontrollable shaking.