subway tracks
A 65-year-old man was killed after being punched on a subway platform and knocked on to the tracks in Brooklyn, New York, Jan. 3, 2018. In this photo, light is reflected off the tracks as a number 6 subway train arrives at the Elder Avenue station in New York, Jan. 7, 2015. Getty Images

A man who was sucker-punched by a teen Wednesday, sending the victim tumbling from a Brooklyn, New York, subway platform on to the tracks, has died, reports said.

Jacinto Suarez, 65, landed on the R-line tracks at the Jay St./Metro Tech station at 2:35 p.m. EST on Wednesday. He went into cardiac arrest was rushed to the Brooklyn Hospital Center and was later pronounced dead at the hospital.

Suarez wasn’t hit by a train as other commuters rescued him off the tracks.

"It’s believed good Samaritans picked him up and placed him back on to the platform," NYPD Transit Bureau Assistant Chief Vincent Coogan said.

The incident happened on the southbound R-Train platform at the station, near Jay and Willoughby streets.

An eyewitness at the scene reportedly told police that the 18-year-old suspect was talking to himself before he approached the victim, who then asked him to leave him alone. The suspect started to walk away, but suddenly turned around and punched the victim in the face, causing him to fall off on to the tracks and hit his head in the process, according to New York CBS local.

"The male asked him to get away," said Coogan. "At this point, the person did start to walk away, but turned around and punched the 65-year-old male."

Police confirmed that the suspect, identified as Edward Cordero, was taken into custody by a nearby officer soon after the incident. The investigation into the incident caused serious afternoon subway delays.

"You may have to make other arrangements," a police officer told commuters at the scene. "The train is not coming in for awhile."

"My dad don’t bother nobody," the victim’s daughter, Tylenea Gonzalez, 34, told the New York Daily News. "I don’t know why anybody would do that to him. He went, he came home. I’m not gonna have him here anymore."

Suarez had 10 children and 13 grandchildren.

"He’s a pain in the butt," Gonzalez said of her dad from their Staten Island home. "But he’s a sweetheart. He helped me with my kids when I was working."

Another one of Suarez’s daughters, who spoke anonymously, was furious.

"What you gonna push an old man for?" she asked.

They said their father was on his way home from inquiring about his Social Security benefits when he was attacked by the teen.

"Whoever did whatever they did, I just want to get justice," Gonzalez added. "That’s it."

Cordero, 18, was reportedly mumbling to himself when he walked up to Suarez, police said. Police sources, who had knowledge of the case said Cordero was apparently rambling about God, heaven and hell and good versus evil when he attacked.

"This wasn’t part of a robbery or anything," a police source told the Daily News. "He was talking about God and suddenly he attacked the guy. He just went off and the victim happened to be there."

The teen's family said he had recently stopped taking medicine for bipolar disorder and schizophrenia and had been terrorizing them for a while now.

The teen, said to be from Brownsville in Brooklyn, was brought to a transit police station for questioning after the incident and is expected to be taken to Bellevue Hospital for a psychiatric exam, police said. Charges are still pending against him.