Investigators say a decades-old roadside death in Calverton moved forward only after new forensic work helped identify the child and her mother.
RIVERHEAD, N.Y. — A Suffolk County murder case built around forensic genealogy is moving through court after prosecutors said new DNA analysis helped solve the 1993 killing of a newborn girl found in a garbage bag beside a Calverton road.
For years, the victim was known publicly only as Baby Jane Doe, a name that reflected both the child’s age and the limits of the original investigation. Prosecutors now say the baby has been identified as the daughter of Denise Merker, who was arrested in February and has pleaded not guilty to second-degree murder. The prosecution matters because it shows how county cold-case units are reopening old files once thought unsolvable, especially when preserved biological evidence can be paired with genealogical testing and then linked to interviews, witness checks and court records.
The original case dates to Sept. 27, 1993, when Department of Transportation workers cleaning an area along Route 25 in Calverton found a discarded bag near a guardrail. Inside, authorities found the body of a full-term newborn girl. News accounts from the time said the infant’s umbilical cord was still attached and paper wads or paper towels were found in or near her mouth. The Suffolk County Medical Examiner ruled the death a homicide by suffocation. Even with that ruling, the case stalled. No parent was publicly identified. No one claimed the baby. The child became one of the haunting unknowns in the county’s records, and the road where she was found became part of the story itself. That early failure to name the child shaped the next three decades: detectives had a homicide victim, but no confirmed identity and no clear suspect to charge.
What changed, prosecutors say, was science and a different kind of investigative strategy. Suffolk County officials have credited a cold-case effort and genetic genealogy work with helping identify the baby. Police have said genealogy was a significant factor, and prosecutors later told a court that DNA testing revealed the child was Merker’s daughter. That did not by itself answer every question, but it gave investigators a concrete path they had lacked in 1993. They could focus on one family line, revisit old locations, examine what records still existed and speak directly to the woman they believed had given birth to the child. Officials have not fully described the underlying lab work in public, and they have not publicly detailed what biological samples were preserved from the 1993 case. They also have not said whether any relatives were contacted before Merker herself was interviewed. Those unknowns may become important if the defense challenges the reliability, chain of custody or interpretation of the genealogy evidence.
According to court documents described by local media, detectives interviewed Merker on Feb. 2 and recorded statements that prosecutors have already highlighted. The complaint says she told investigators, “I did it. I did everything.” Another statement attributed to her said she put a paper towel in the baby’s mouth because the infant was crying. Prosecutors have added more context in open court, saying Merker was 22 at the time, concealed the pregnancy, gave birth at her grandmother’s house and had no plans for the baby. They say the child was born alive, breathing and crying before being suffocated and discarded. Merker has not admitted guilt in court. Instead, she pleaded not guilty after being indicted, and the case now turns on what prosecutors can prove beyond the interview itself. It is still not publicly known whether there were any contemporaneous witnesses to the birth, whether any 1993 physical evidence links directly to a residence and whether the defense will argue that memory, age of the evidence or interview conditions undermine the state’s timeline.
The legal track shows how quickly a cold case can move once investigators believe they have both identity and probable cause. Merker was arrested Feb. 2 and arraigned Feb. 3 in Riverhead Justice Court. Records cited by local media show she was held without bail. A Suffolk County grand jury later indicted her on second-degree murder, and she appeared in county court in Riverhead for arraignment on the indictment. During that proceeding, prosecutors described the case in stark terms, saying the newborn was silenced with paper towels and left by the roadside. Merker pleaded not guilty. Court scheduling shifted at least once before the county-court arraignment, and later reporting said her next appearance was set for April 15. Public records do not yet show a trial date. The next steps are likely to include evidence exchange, litigation over statements made during the police interview and possible motions related to scientific testimony if prosecutors intend to explain the genealogy work in detail before a jury.
Outside the courthouse, the case has taken on a second meaning for local investigators and residents: not only who was charged, but who the victim was after all these years. Naming the baby changes the story from an abandoned case file to a homicide with a family line, a timeline and a defendant. It also puts a spotlight on the county’s effort to revisit unidentified infant cases by entering DNA profiles into national systems and using newer tools unavailable in the early 1990s. The methods are modern, but the facts at the heart of the case remain painfully old: a newborn dead on the side of a road, road workers making the discovery and a small set of physical clues that outlasted the original investigation. The prosecution now has to bridge those two eras, showing a judge and possibly a jury that old evidence and new science form one coherent account.
As of now, the case remains in its early court phase, with Merker contesting the charge and the next public milestone expected at her April 15 appearance in Suffolk County Court.
Author note: Last updated March 23, 2026.