Daniel Penny, the 24-year-old USMC veteran who put Jordan Neely in a chokehold that proved fatal on the New York City subway last week, will face second-degree manslaughter charges, the Manhattan district attorney’s office said Thursday.

"We can confirm that Daniel Penny will be arrested on a charge of manslaughter in the second degree," a spokesperson for Manhattan DA Alvin Bragg said. "We cannot provide any additional information until he has been arraigned in Manhattan Criminal Court, which we expect to take place tomorrow."

Neely, who has a history of mental illness, was throwing garbage on the F train on May 1 and yelling that he wanted to die or go to jail because he was tired of having no food when Penny stepped in to restrain him.

The city medical examiner ruled the death a homicide caused by "compression of neck (chokehold)." Protesters jumped onto the tracks at one Lenox Hill subway station last weekend, blocking subway service while calling for consequences for Penny, who was initially taken into custody after Neely's death, but was later released.

Penny released a statement through his attorneys on last week saying he "never intended to harm" Neely.

A three-and-a-half minute long video captured by a witness begins with Neely already in a chokehold. Shortly after, a second rider pins down Neely's arms. Thirty seconds into the video, Neely begins to flail his arms and try to escape Penny's grasp. Then the third man enters to help pin Neely to the floor.

More than two minutes into the video, Neely begins going limp. Another witness can be heard off camera telling Penny, "You're going to kill him now, he's defecated on himself." One of the men restraining Neely said it was an old stain on his pants and that Neely was not "squeezing."

"He's not squeezing? All right. You've got to let him go. After he's defecated himself that's it," the off-camera witness said.

The man holding Neely's arms down then let go and asked Neely if he could hear him. When Neely failed to respond, Penny released him. Seconds later, Penny and the other man moved Neely into a recovery position. After three minutes and 45 seconds of video, Neely's body contorted and let out a deep breath. The witness who recorded the video later said, "None of us who were there thought he was in danger of dying. We thought he just passed out or ran out of air."