Marcin Pieciak, 36, was formally indicted by a Grand Jury in New York City on Friday, April 5 on charges relating to the murder of his 41-year-old girlfriend Sarah McNally, a native of Co Longford.

The Queens District Attorney told Criminal Court Judge Julieta Lozano that a Grand Jury had issued the indictment at a hearing in Queens Criminal on Friday, RTÉ reports.

The indictment remains under seal until a later date.

Pieciak, who remains hospitalized from self-inflicted stab wounds, did not appear in court on Friday but his legal representative, Garnett Sullivan, was in attendance, according to The Irish Times.

The Irish Times added that Pieciak is due to appear in court again on April 19 where he is expected to enter a plea.

McNally, who had been living and working in the US for a number of years, died on Saturday night, March 30 after being stabbed while working at The Céilí House, an Irish bar in Maspeth, Queens.

On Monday, Pieciak was arrested and charged with murder in the second degree and two counts of criminal possession of a weapon in the fourth degree. 

According to The Daily News, Pieciak appeared before Queens Criminal Court Judge Julieta Lozano virtually from his bed in Elmhurst Hospital Center on Wednesday. During the arraignment, the court heard that Pieciak and McNally's relationship "was not going well" and that McNally had been considering returning to Ireland.

The Queens District Attorney's Office says that according to the charges, Pieciak stabbed McNally multiple times at The Céilí House, where she was bartending, on Saturday evening.

Pieciak cut his own throat several times and tried to leave the bar. A bar patron made efforts to detain Pieciak until police arrived.

Police recovered two knives from the ground after observing Pieciak drop them as he left the bar.

Pieciak faces up to 25 years to life in prison if convicted.

District Attorney Katz said in a statement after the arraignment on Wednesday: “This was an attack that shocked the community.

"It was unprovoked and a devastating loss for the family.

"We are using every resource to make sure there is accountability.”

Pieciak was indicted the same day that McNally's funeral arrangements were announced.

A notice on on Friday said: "Reposing at Glennon's Funeral Home, Ballinalee Road (N39 EC81) on Sunday 7th April from 5:00 pm, concluding with prayers at 8:00 pm.

"Mass of The Resurrection at 11:00 am on Monday 8th April in St. Mel's Cathedral followed by a private cremation."

The Funeral Mass for Sarah McNally will be streamed live online here.

House is strictly private.

McNally's family has requested that donations, if desired, be made to the Kevin Bell Repatriation Trust or c/o Glennon Funeral Directors or any family member.

McNally, the notice says, is "Sadly missed and remembered with love by her family, her loving mother Dorrie, dear father Des, grandmother Kathleen O’Connor, aunts, uncles, relatives, extended family and a wide circle of friends in Longford and New York."

Meanwhile, a GoFundMe launched in New York this week for the funeral and associated costs for the family of McNally was closing in on its goal of $10,000 on Friday evening. The fundraising page says that details about a memorial mass for McNally will follow.