> > Previous chapters and full table of contents > > Full coverage at “Beyond the Scorpion Tattoo” series pageSTATEN ISLAND, N.Y. — After three decades and all leads seemingly exhausted in the 1991 cold-case murder of an unidentified woman in Ocean Breeze — there was a breakthrough.In 2019, investigators now under the direction of District Attorney Michael E. McMahon submitted a blood sample from the victim to a laboratory in The Woodlands, Texas, that had been making headlines.In 2021, with the help of forensic scientists, officials were able to determine what past technologies and police investigations could not:The victim’s name.She was 29-year-old Christine Belusko, of Clifton, New Jersey. It begged the question of how her lifeless body ended up on the East Shore of Staten Island.As it turned out, she had a 2-year-old daughter at the time of her death, whose whereabouts were unknown.Detectives investigate the homicide on Seaview Avenue in Ocean Breeze in September of 1991. (Staten Island Advance) District Attorney’s officeOthram Inc.It was through innovative forensics at Othram Inc., and old-fashioned police work, that investigators were able to identify Christine.Othram Inc. is a privately-run biotech and engineering laboratory where scientists employ whole genome DNA sequencing, in combination with genealogical research, to uncover unknown identities.Whole genome sequencing is a technology that identifies the complete DNA sequence of an organism, or in other words the uniqueness of an individual’s entire DNA strand. Genealogical research is the process of tracing a person’s family history and ancestry.David Mittelman, Othram’s chief executive officer, has helped law enforcement across the country solve hundreds of crimes. Perhaps his most high-profile victory was helping to identify and bring to justice the Golden State Killer, a man by the name of Joseph James DeAngelo Jr., in 2018. DeAngelo’s identity had eluded law enforcement for decades.In 2023, Othram was able to identify Richard Wick, a 48-year-old Florida man who was killed in 1993; and Luther Marion Ezell, a man who went missing in 1980. They also helped officials in Prentiss, Mississippi, identity rapist Derrick Washington.There’s over 400 solved cases on Othram’s website.New DNA technologiesOn Staten Island, law enforcement had previously entered a sample of Christine’s DNA into the Combined DNA Index System (CODIS), an FBI-maintained database used by law enforcement across the U.S. They also sent her dental records to the FBI.But to no avail.So in 2019, McMahon’s office, on the recommendation of the FBI, reached out to Othram.Kristen Mittelman, chief business development officer for the laboratory, in an exclusive interview with the Advance/SILive.com, explained how their scientific process differs from CODIS.The CODIS system identifies 20 genetic markers to determine an unidentified DNA fingerprint. The database it uses to search for possible matches is made up of individuals who were convicted of a crime.Othram’s process, using whole-genome sequencing, identifies hundreds of thousands of DNA markers, which allows technicians to not only search for direct matches or nuclear family members — but also extended family, as distant as seventh or eighth cousins.Also, unlike CODIS, the databases used by Othram to search for matches include people from the general public, who at some point consented to submit their DNA for law enforcement use.After identifying matches within the person’s family — as distant as it might be — Othram connects the genealogy dots to determine how those people might be related to each other.“We had Christine’s profile, and then what we found was that she matched this person in chromosome one, and she matched this person in chromosome eleven. And it tells you how much she matched,” Kristen Mittelman explained. “The more of a match in your DNA with someone, the closer you are in relationship. So you can infer how far one person is from the other. Are they sisters? Sixth cousins? Third cousins? Are they aunt and uncle? You know, you can figure that out by the distance, the number of segments that are actually related.”When Othram’s research is complete, it helps law enforcement form a “genealogy tree” of sorts to track down relatives. Then, through traditional detective work determine if anyone from the family had gone missing.Crime scene evidenceBefore Othram technicians could enter Christine’s profile into their databases for possible matches, they had to determine whether there was sufficient DNA to build a profile from the forensic material they received, Kristen Mittelman said.Unlike a cheek swab conducted in a controlled environment, crime scene evidence submitted to Othram often contains contaminated genetic samples and samples that contain DNA from multiple individuals. The evidence also can become degraded by weather and time, or contain animal and bacteria DNA.In this case, Christine had been bludgeoned, doused in turpentine and set on fire on the edge of a field; then rained on.Still, with the use of modern sciences, Othram determined there was a high likelihood of yielding a strong DNA profile from the sample.This chart shows how a DNA sample can lead to identification.Shaina McLawrenceLearning about the victimIt was one of Christine’s biological siblings tracked down by detectives who agreed to submit a DNA sample to law enforcement, which Othram used to confirm Christine’s identity.Through the course of their investigation, detectives also learned Christine was adopted at birth. She was the second youngest of eight children and the only one to be adopted.In June of 2021, members of local and federal law enforcement visited the New Jersey home of a man raised as Christine’s brother, Francis Belusko.Both Francis and Christine were adopted at birth from different families and grew up together in Montville, New Jersey. Their adoptive parents were both deceased.Detectives inquired about the last time Francis saw his sister, and about what was going on in her life at the time. From there, the pieces started to fall together.District Attorney Michael E. McMahon stands before photos of Christine Belusko during a press conference on Tuesday, March 21, 2023. (Staten Island Advance/Jason Paderon)A public announcementIn 2023, about two years after Christine’s body was identified, McMahon held a press conference at his offices in St. George. The DNA testing, he announced, had breathed new life into the case.“Nearly 30 years later, in a joint effort with the FBI, we employed the use of forensic genealogy,” said McMahon. “Thanks to this incredible tool, we were able to identify the victim as Ms. Christine Belusko of Morris County, New Jersey.”The borough’s top prosecutor called on the public to come forward with information about the homicide or the whereabouts of Christine’s daughter.Said McMahon: “We issue this cry for help, and hope that the information that will help us comes in.”***The search for Christine’s killer remains an active investigation. If you have any information about her case, please reach out to the Richmond County District Attorney’s Office at 718-556-7085. All calls can be kept confidential.If you would like to contact our reporting team regarding this case, you can do so at [email protected].