A New York City grand jury is expected to vote on whether or not New York police officer Daniel Pantaleo should be criminally prosecuted for his actions in the death of Eric Garner, the Staten Island man who died after police put him in an illegal chokehold in July.

Sources familiar with the court proceedings say that the grand jury, which began investigating Garner's death in September, could vote on a ruling as early as Wednesday, reports CNN.

The incident took place on July 17 when Garner, a 43-year-old African American man, had a verbal confrontation with two plainclothes NYPD officers who accused him of selling untaxed cigarettes. A video recording appears to show Officer Pantaleo putting Garner in a chokehold while he was resisting arrest. The white cop also slammed Garner's face into the ground, ignoring the victim's repeated cries "I can't breathe," reports the Daily News. Authorities say that the asthmatic married father of six died from a heart attack about an hour after his arrest. His death was later ruled as a homicide, reports the Huffington Post.

Officer Panteleo testified before the grand jury last month. He is the only NYPD member facing a possible indictment. The other cops who were at the scene, including two sergeants, were given immunity in exchange for their testimony to the grand jury.

According to NBC New York, the jury is comprise of 23 people, 14 who are white, nine non-whites and at least five blacks.

Garner's family has been outspoken in calling for an indictment due, in light of the video and medical examiner's report. Relatives also described the 350-pound, 6-foot-3 man as a "gentle giant" and a "big teddy bear," reports the Staten Island Live.

However, the police union and Pantaleo's lawyer argue that the white cop didn't use a chokehold but a takedown move taught by the police department, and that Garner's poor health was the cause of his death.