Wacko NYC subway slasher was set to be held on bail — until he talked the judge out of it: records

A deranged vagrant charged in a random Manhattan slashing this week was set to be locked up on bail after a hauntingly similar attack last month — until he talked the judge out of it, court records show.

Demitri Marshall, 32, who was busted Monday for allegedly slashing a 27-year-old straphanger outside a Lower East Side subway station, went before Bronx Criminal Court Judge Ralph Wolf on Sept. 15 on charges that he attacked another passenger in the Bronx in August.

Bronx prosecutors asked the judge that Marshall, a repeat offender with a stint in state prison under his belt, be held on $50,000 cash bail or a $150,000 bond in the Aug. 28 Bronx attack.

“Well, certainly I have information before me that I would be perfectly — it would be perfectly reasonable for me to set bail here,” Wolf said during the proceedings.

“I don’t have no bail on me,” Marshall shouted, according to a transcript of the arraignment.

“I know,” the judge responded. “Based on the allegations and the record and what I’m supposed to consider, so I think you understand….”

“As long as I stay out of trouble,” Marshal said.

Wolf then warned him to check in regularly for supervised release and cut him loose without bail.

Marshall was still free on Monday when police said he snuck up behind his latest victim and slashed his face outside Manhattan‘s East Broadway station.

He ran off but cops nabbed him hours later and charged him with felony assault — enough to finally get him jailed.

The victim, who identified himself only as Fernando, told The Post he needed seven stitches to close the gash on his face — and wondered how the brute was free to attack him.

“He’s a criminal who got released by a judge and he could’ve killed me,” he said. “I don’t know why the justice system lets him go free.”

Marshall, who had already racked up seven arrests — including an unprovoked attack on a 27-year-old man on an MTA bus in the Lower East Side on Jan. 26 — is now being held without bail.

Records show he served more than a year at the state’s Sing Sing Correctional Facility in Westchester County on a robbery conviction before he was released in June 2024.

In the Aug. 8 incident, prosecutors said Marshall was on a 6-train at the Zerega Avenue station in the Bronx when he slashed a 21-year-old man in the face moments before the subway doors closed.

Wolf, a former civil court judge, was appointed to the bench by Mayor Eric Adams last year.

Officials at the state Office of Court Administration, which speaks for Empire State judges, did not immediately respond to a request for comment on Wednesday.

But in a statement Tuesday, OCA spokesman Al Baker said the office “does not comment on individual bail determinations.”

Baker added that judges have discretion on bail-eligible cases after an assessment that “involves due consideration of information and arguments presented by the prosecutor and defense council, as well as other materials submitted to the court.”

Marshall’s public defense attorney, Alyssa Work, argued during the Sept. 15 hearing that Marshall had close ties to the community and was enrolled in a drug treatment program.

“Mr. Marshall, he’s got community ties, judge,” Work told Wolf. “He has shown that in the past, although he certainly has had some contacts [with the court system], he has by and large returned to court when he has to return to court.”