Brooklyn mother sentenced to 20 years to life for drowning her three children near Coney Island

A Brooklyn mother who walked her three young children into the Atlantic Ocean near Coney Island in September 2022 and drowned them was sentenced Wednesday to 20 years to life in prison, ending one of the most harrowing child murder cases in recent New York history.

Erin Merdy, 34, pleaded guilty earlier this year to three counts of first-degree murder in the deaths of her 7-year-old son Zachary, her 4-year-old daughter Liliana, and her 3-month-old son Oliver. Fox News reported that the city medical examiner ruled all three deaths homicides caused by drowning.

Brooklyn District Attorney Eric Gonzalez said the children’s lives were taken “in the most heartbreaking and unthinkable way.”

“No sentence can fully measure the loss of a seven-year-old, a four-year-old and a three-month-old baby, or the grief their loved ones will carry forever. We sought the strongest possible accountability in this devastating case, and while nothing can bring these children back, this sentence ensures the defendant will be held responsible for taking their lives.”

The sentence, handed down in Brooklyn Supreme Court, the New York Post reported, came after a judge allowed a plea deal that took life without parole off the table. Merdy pleaded guilty to three counts of first-degree murder under that agreement.

A night of horror on Coney Island Beach

Prosecutors laid out a grim timeline. Surveillance video showed Merdy walking toward the ocean with all three children shortly before 1 a.m. on September 12, 2022. By around 1:25 a.m., prosecutors said, Merdy had left the beach and begun walking toward the apartment of the father of her youngest child.

She left the children behind, in the water.

That morning, one of Merdy’s relatives called 911, expressing concern the children might be in danger. Authorities found Merdy barefoot and soaking wet roughly two miles from where the children were later discovered. She repeatedly told authorities the children were gone and that she was sorry, prosecutors said.

Hours later, the children’s bodies were recovered along the Coney Island shoreline, just steps from the famous boardwalk. New York Police investigators examined the stretch of beach where the three were found dead in the surf.

‘I’m scared to go back to mommy’

The sentencing brought fresh anguish from the families of the victims. Shamir Small, the father of 4-year-old Liliana, delivered a statement that captured the horror of what his daughter endured, and what he now carries.

“The last thing Lily said to me and my mother, which will forever haunt me, was ‘I’m scared to go back to mommy, and want to stay here with you and grandma.'”

That detail, reported by the New York Post, adds a dimension no courtroom sentence can reach. A 4-year-old girl told the adults in her life she was afraid. And then she was returned to the person she feared.

Merdy herself addressed the court. She told the judge that on the night she walked her children into the ocean, she was “on autopilot.” That was the extent of her explanation.

Relatives raised alarms before the killings

Merdy’s own mother, Jacqueline Scott, 56, told the New York Daily News at the time that her daughter had recently struggled with mental health issues and may have been experiencing postpartum depression following Oliver’s birth.

“I reached out to her yesterday and she said she was doing laundry and I said I wanted to speak to the kids. I tried to call her twice on the phone after that and there was no answer.”

Family members had called police with concerns before Merdy was found dazed on the beach. The Associated Press reported that relatives had expressed fears she intended to harm the children, prompting the search that led officers to Merdy, and, ultimately, to the bodies of Zachary, Liliana, and Oliver.

The question that hangs over this case is not whether Merdy committed the crime. She admitted it. The question is whether anyone, any institution, any system, could have intervened before a mother walked three children into the Atlantic in the dead of night.

What accountability looks like, and what it doesn’t

Twenty years to life is a serious sentence. Gonzalez called it “the strongest possible accountability.” And in a system that increasingly treats violent offenders with leniency, the fact that prosecutors secured a first-degree murder plea on all three counts matters.

But accountability for the defendant is only one part of the ledger. Zachary was seven. He was old enough to understand what was happening to him. Liliana, at four, told her father and grandmother she was scared. Oliver was three months old, an infant who could not speak, could not resist, could not flee.

The timeline prosecutors presented shows that roughly 25 minutes elapsed between the surveillance footage of Merdy walking toward the ocean with the children and the moment she left the beach alone. In that window, three lives ended.

Merdy’s mother flagged mental health struggles. The children’s father heard his daughter beg not to go back. Relatives called 911. These were not silent warning signs buried in bureaucratic files. They were spoken aloud, to family members and to police.

And still the children died on a dark beach, steps from the Coney Island boardwalk, in a city that spends billions on social services and public safety.

The limits of a sentence

Gonzalez was right about one thing: no sentence can fully measure the loss. A seven-year-old boy, a four-year-old girl, and a three-month-old baby are gone. The grief their families carry will outlast any prison term.

Merdy will spend decades behind bars. That is the minimum justice demands. But the harder reckoning, the one no courtroom can impose, is whether the systems that existed around this family did everything they could before September 12, 2022.

Three children told us, in their own ways, that something was wrong. The youngest couldn’t speak at all. The system owed them more than a sentencing hearing.