The Perfect Neighbor

There is a moment, captured on video, that investigators would later describe as one of the most remarkable scenes in the history of Los Angeles cold-case work. It is 2009, and a woman sits in a small room at LAPD's Robbery-Homicide Division, apparently unaware that she is being recorded. She is a detective herself — seventeen years on the force, well-liked, respected, the kind of officer colleagues describe as dedicated and sharp. She is being asked, carefully and indirectly, about a murder that happened twenty-three years earlier. And as the questions draw closer, something shifts behind her eyes. The detectives watching that footage would say later that they knew, in that room, that they were looking at their answer.

The woman's name was Stephanie Lazarus. And the case they were circling had a name too: Sherri Rasmussen.

Sherri Rasmussen was, by every account that has survived the years, exactly the kind of person the world does not have enough of. Born in 1958 in Tucson, Arizona, she was the daughter of Nels and Loretta Rasmussen, a close family that would later fight, with extraordinary persistence, to see her death answered for. Sherri was brilliant — she earned a nursing degree and then kept going, rising to become the director of nursing at Glendale Adventist Medical Center at an age when many of her peers were still finding their footing. Her colleagues remembered her as someone who combined genuine warmth with rigorous competence, who made difficult decisions and made them well, who could sit with a frightened patient and make them feel, somehow, that everything would be all right.

She met John Ruetten while both were students at UCLA. They were, friends said, a natural fit — smart, ambitious, devoted to each other in the unself-conscious way of people who have found something real. They married in November of 1985. They were newlyweds, four months into their life together, when everything ended.

The morning of February 24, 1986, was an ordinary Monday in the Balboa Avenue condominium the couple shared in Van Nuys, just inside Los Angeles proper near the Burbank border. John Ruetten left for work. Sherri stayed home — she had called in sick, a minor illness, nothing alarming. When Ruetten returned that evening, he found his wife on the living room floor. She had been beaten savagely and shot three times. She was twenty-nine years old.

Los Angeles detectives who responded to the scene noted signs that seemed to suggest a struggle had preceded what they characterized as a burglary gone wrong. A stereo and other items had been taken, and the circumstances, at least on the surface, pointed toward an intruder who had been interrupted. Sherri had defensive wounds on her hands and arms. There was a bite mark on her forearm — a detail carefully swabbed and preserved among the physical evidence, though its significance would not be understood for two decades.

The detectives worked the case, interviewed neighbors, chased leads. But no arrests followed. Burglaries in the area had spiked around that time, the apparent motive seemed consistent with a robbery, and the investigation gradually slowed. Sherri Rasmussen's file was transferred to the unsolved cases shelf, where it would sit, and wait, through the administrations of five Los Angeles mayors.

What the original investigators did not know — or did not fully pursue — was information that Nels Rasmussen, Sherri's father, would say he had tried to share with detectives at the time. He told them, he later recounted to journalists and in legal proceedings, that his daughter had been frightened in the period before her death. That there was a woman, an LAPD officer, a former girlfriend of John Ruetten's, who had confronted Sherri, who had shown up at her workplace, who had made it clear she was not reconciled to the end of her relationship with the man Sherri had married. Nels Rasmussen gave investigators a name. The name did not lead anywhere, at least not then.

Stephanie Lazarus and John Ruetten had dated during their college years at UCLA. Prosecutors would later argue, and testimony at trial would support, that Lazarus had been deeply resistant to the relationship's end. She joined the LAPD in 1983. When Ruetten became serious with Sherri Rasmussen and eventually married her, court records and subsequent reporting describe a pattern of behavior that alarmed Sherri. Sherri reportedly confided in family members that a female LAPD officer had confronted her, even grabbed her at one point — a woman she understood to be her husband's ex-girlfriend. She told her parents she was worried. She did not know how worried to be.

The case slept for eighteen years after the murder, and then, in 2004 and again in the years that followed, the LAPD's cold case unit began revisiting it. The advancement of DNA technology had changed what was possible. That bite mark swab, preserved in 1986, still existed. In 2009, a detective named James Nuttall, reviewing the file, pushed to have the biological material from that swab submitted for DNA testing. The swab had never been compared to anyone in particular. When the results came back, they indicated the DNA profile was from a female contributor. That alone reoriented the investigation in a way that the original detectives' burglary theory had never anticipated.

Working carefully, the cold-case team identified Stephanie Lazarus as a person of interest. The challenge was considerable: Lazarus was one of their own. She had spent more than two decades as an LAPD detective. She was currently assigned to the Art Theft Detail. Investigating a fellow officer for murder required extraordinary procedural caution, not only to protect the integrity of any eventual prosecution, but — practically — to keep Lazarus from learning she was under scrutiny. If she became aware she was being looked at, evidence could be lost.

The detectives obtained a sample of Lazarus's DNA covertly. According to reporting by the Los Angeles Times and court records from the subsequent trial, investigators retrieved a discarded coffee cup and items Lazarus had touched, and ran her DNA against the profile from the bite mark. It was a match.

But they wanted more. They wanted to hear from her directly. And so they constructed the 2009 interview — described in court proceedings as deliberately framed as a routine inquiry, conducted by detectives Lazarus did not know personally, in a manner designed not to alert her to the full weight of what was happening. Lazarus was told only that investigators were following up on old cases and had a few questions about someone she might have known — John Ruetten. She agreed to speak with them, apparently not understanding the shape of the conversation she was walking into.

The interview lasted roughly three hours. Lazarus, a trained detective who had conducted countless interrogations herself, nonetheless revealed, as the questions narrowed, a familiarity with events and details that investigators found significant. She acknowledged knowing Ruetten. She acknowledged the relationship had been romantic. She said she had visited the couple's home on at least one occasion. She offered characterizations of Sherri Rasmussen — of her personality, her demeanor — that, to the detectives watching and later to prosecutors reviewing the tape, suggested a depth of knowledge and a quality of feeling that went beyond the casual acquaintance she was trying to imply. She denied involvement in the murder. But to investigators, what she said and how she said it only deepened their certainty.

Stephanie Lazarus was arrested on June 5, 2009. She was taken from the LAPD's Devonshire Division parking lot. She had been with the department for twenty-seven years.

The case that prosecutors assembled over the following years was circumstantial in some respects and forensic in others, and in the combination prosecutors argued they had something formidable. The DNA from the bite mark swab was central — it was the scientific spine of the case, and the defense vigorously challenged both the integrity of the sample's preservation over two decades and the conclusions drawn from it. Defense attorneys argued that the evidence had been mishandled, that contamination was possible, that the chain of custody had gaps that should give the jury pause.

Prosecutors countered with the accumulation: the DNA evidence, the testimony about Lazarus's conduct in the period before the murder, the account of Sherri's own reported fears, the details of Lazarus's acknowledged presence in Ruetten's life, the nature of the wounds — particularly the bite mark, which a forensic odontologist testified was consistent with Lazarus's dental profile. They argued that the crime scene, far from resembling a burglary, reflected a personal, escalating attack — the kind of violence that does not fit a stranger's opportunism but rather the fury of someone who knew the victim, who had something to lose, who had, prosecutors said, come to that condominium with a purpose.

John Ruetten testified at trial. He confirmed the earlier relationship with Lazarus, confirmed that Sherri had been frightened of her, confirmed details about Lazarus's contacts with the couple. His testimony, delivered with evident grief over events that had unmade his life more than two decades before, was described by courtroom observers as among the most affecting moments of the proceedings.

The trial began in 2012 and unfolded over several weeks in Los Angeles Superior Court. The defense maintained throughout that Lazarus was innocent, that the evidence was unreliable, that the prosecution had built a case on the shakiest of forensic foundations and filled the gaps with speculation and suggestion. The jury deliberated. On June 5, 2012 — exactly three years to the day after her arrest — the jury returned its verdict. Stephanie Lazarus was found guilty of first-degree murder.

She was sentenced to twenty-seven years to life in state prison.

The defense appealed, arguing among other issues that the undercover nature of the DNA collection and the circumstances of the 2009 interview had violated Lazarus's rights. In 2014, the California Court of Appeal reviewed those arguments and affirmed the conviction. The court found that the covert retrieval of DNA from discarded items did not constitute an unlawful search, and that the interview, while strategically constructed, had been conducted lawfully. The conviction stood.

Stephanie Lazarus has continued to maintain her innocence. As of the most recent public record, she remains incarcerated, serving her sentence at a California state correctional facility, eligible for parole consideration in the coming years under the terms of her sentence.

What the case laid bare went beyond a single act of violence, however terrible that act was. It raised questions — uncomfortable, persistent questions — about what had happened in 1986, when a grieving father had walked into an LAPD station and given investigators a name, a specific name, of a person who had been frightening his daughter. Why that name had not been more aggressively pursued. Whether the fact that the name belonged to a fellow officer had anything to do with the direction the investigation took, or failed to take. The LAPD declined to offer definitive answers to those questions, and the full truth of what happened in 1986 inside that investigation remains, in certain respects, unresolved. What is clear is that for twenty-three years, Sherri Rasmussen's killer, if the jury's finding is correct, was not merely free. She was working, every day, in the same institution that was nominally responsible for solving the crime.

Nels Rasmussen, Sherri's father, became in many ways the moral center of the story's long middle passage. He kept calling. He kept writing. He kept presenting the evidence that he believed pointed somewhere specific, to someone specific, and asking the department to look. He did this for years. For more than two decades. He did not stop. When the arrest finally came, Nels Rasmussen was in his eighties, and the relief visible in his public statements was not triumphant — it was exhausted and sorrowful in the way of people who have carried something heavy for so long that they can barely remember what it felt like before the weight.

There is something that stays with you about Sherri Rasmussen, if you sit with this case long enough. She was not a random victim in an unlucky moment. She was, the jury found, targeted — sought out in the place she should have been most safe, in the home she shared with her new husband, on a day when she happened to be home and he happened to be away. She had known enough to be afraid, had told her family, had tried to navigate a situation she couldn't fully see the edges of. She was twenty-nine years old, running a hospital nursing department, married to someone she loved, planning whatever came next.

The next generation of true-crime cases often hinges on what DNA makes possible — on the fact that biology, preserved in a swab or a stain or a discarded cup, does not care how much time has passed or how powerful the person it implicates might be. The bite mark on Sherri Rasmussen's arm was documented in 1986. It waited. And in the end, it said what it had always been capable of saying.

Sherri Rasmussen is buried in Tucson, not far from where she grew up. Her family has said, in the years since the verdict, that the conviction brought a measure of peace. Not closure — that word, so often deployed in cases like this, implies a door that shuts cleanly, and grief is rarely that tidy. But something. The knowledge that someone had finally, formally, looked and seen and said: this happened, and this is who the jury found responsible, and that matters.

It does matter. It has always mattered. Sherri made sure of that, in the end, without even knowing she had left behind the evidence that would speak for her.