Michelle Taylor sat<\/span> at the defense table during her sentencing hearing in St. Augustine, Florida, listening to a trio of forensic chemists lay out the scientific evidence to prove what she\u2019d sworn for years: She had not set the fire that burned down her house and killed her own son.<\/p>\n It was the last Friday in May, and the St. Johns County courthouse was mostly empty.<\/p>\n The expert witnesses each testified via Zoom, their faces appearing on a pair of large monitors inside the wood-paneled courtroom. None of the experts knew Taylor personally. But they knew chemistry. And each made clear that the case against Taylor had been based on junk science: faulty analysis by a state lab worker who detected gasoline in fire debris samples where there was none.<\/p>\n The testimony was vindicating for Taylor. But it also came too late to prevent what she insisted was a wrongful conviction. More than six years after the fire, she had reluctantly accepted a plea deal<\/a> at the urging of her defense attorney. It allowed her to maintain her innocence \u2014 and avoid a mandatory life sentence had she gone to trial and lost. But it had not cleared her name. Now Taylor hoped the hearing might.<\/p>\n Taylor\u2019s home caught fire on the night of October 23, 2018. She and her 18-year-old daughter Bailey escaped through a window. But her 11-year-old son David went back for the family dog and died. Investigators became immediately suspicious of Taylor after a dog trained to detect accelerants alerted in several spots throughout the home. At the state fire marshal lab outside Tallahassee, fire debris analyst Dee Ann Turner examined samples collected from the scene and repeatedly found gasoline, a telltale sign of arson.<\/p>\n But Turner was disastrously wrong, the witnesses said. According to the experts, she had misidentified gasoline in 12 different samples taken from Taylor\u2019s home. The samples were \u201cvery clearly not gasoline,\u201d testified John Lentini, a renowned fire scientist <\/a>who first reviewed the data and submitted his findings in a defense report in January 2024. Turner\u2019s erroneous analysis had gone undetected for so long because investigators had little reason to suspect such sweeping mistakes \u2014 \u201cnor did they have the expertise to question it,\u201d he testified.<\/p>\n The faulty forensics became the basis for the entire case against Taylor, Lentini said. \u201cEvery time another possibility was considered, the [lead investigator] said, \u2018Yeah but we\u2019ve got gasoline here.\u2019\u201d<\/p>\n Prosecutors had long known that their forensic evidence was fatally flawed. Lentini\u2019s report had been reviewed by a pair of chemists with the federal Bureau of Alcohol, Tobacco, Firearms, and Explosives, who agreed that the data did not show gasoline. Yet Seventh Judicial Circuit State Attorney R.J. Larizza had refused to drop the charges against Taylor, instead seizing on financial improprieties in her bank records as proof that she committed arson for profit. Taylor and her husband were behind in their mortgage at the time of the fire. Despite having money to pay for it, there was evidence that Taylor had defrauded area churches to cover the payments instead.<\/p>\n Such circumstantial evidence did not prove anything on its own. But Taylor\u2019s attorney, John Rockwell, worried it may be enough for a jury to convict his client anyway. He worked out a plea deal with prosecutors, who agreed to drop the arson charge if Taylor pleaded no contest to manslaughter. Rockwell, a former prosecutor, began to prepare for the sentencing hearing the way he would for a criminal trial. If he could prove that the scientific evidence did not hold up, he could convince the judge to impose the lowest possible sentence.<\/p>\n The stakes remained high. Under the plea deal, Seventh Judicial Circuit Judge Lee Smith could still sentence her to as many as 13 years in prison. And while the scientific evidence was certainly on Taylor\u2019s side, there was no guarantee Smith would be moved by it. At the start of the hearing, Lee asked Taylor: \u201cAnd you still want to proceed today with the sentencing knowing the possible range of possible sentences that you\u2019re facing?\u201d<\/p>\n \u201cYes, sir,\u201d Taylor said.<\/p>\n I first wrote about Taylor in March, delving into the fire investigation in her case as well as the Florida lab, which had a record of faulty fire debris analysis<\/a>. At that time, Taylor was scheduled to go to trial over the summer \u2014 and prosecutors had asked the judge to limit what Lentini would be allowed to say to the jury about the lab, arguing that its history was irrelevant.<\/p>\n Lentini had been raising alarm over the lab for years. The lab\u2019s flawed gasoline findings had led numerous people to be wrongly accused of arson \u2014 including in a death penalty case. In 2016, he filed an ethics complaint against the lab, which led to an audit by a team of independent experts. The results were abysmal: Of 26 cases they selected for reanalysis, lab analysts had wrongly reported gasoline in 14 of them. The lab temporarily lost its professional accreditation but regained it after agreeing to a remedial plan, which included a self-review of work dating back to 2009. But the review was never completed, leaving some 8,000 cases unexamined.<\/p>\n \u201cThere is no gasoline in these samples.\u201d<\/p>\n<\/blockquote>\n<\/figure>\n At the heart of the problem, Lentini argued, was that state lab analysts were not following the professional standards for fire debris analysis that had been in place for decades. Rules for identifying ignitable liquids in fire debris were developed in the 1990s by the American Society for Testing and Materials. A standard known as ASTM E1618 laid out specific parameters for identifying gasoline. The auditors had previously found that lab analysts were not following the standard, instead using an \u201cunvalidated protocol that is not generally accepted in the scientific community.\u201d Although the lab claimed to abide by ASTM E1618, Turner\u2019s work showed that, in Taylor\u2019s case, this was not true.<\/p>\n In a statement to The Intercept, a spokesperson for the Florida Division of Criminal Investigations\u2019 Bureau of Forensic Services said: \u201cBFS adheres to industry standards, including ASTM E1618, to detect trace levels of ignitable liquids and ensure reliable, science-based conclusions. Moreover, the lab maintains a culture of continuous improvement, regularly evaluating its procedures, investing in advanced training, and participating in proficiency testing to uphold the highest integrity of its work.\u201d<\/p>\n The evidence taken from Taylor\u2019s home in the fall of 2018 had gone through a common procedure for testing fire debris. Samples were collected in metal cans, which were brought to the lab and heated in an oven. The resulting vapors were captured on charcoal strips suspended from the top of each can, which were then rinsed with a solvent, producing a solution to be injected into a machine called a gas chromatograph\/mass spectrometer. The GCMS, as it is commonly known, produced a chromatogram: an electronic signature made of up peaks and valleys.<\/p>\n This process is straightforward until it comes to interpreting the data. The peaks on a chromatogram that indicate gasoline can easily be mistaken for peaks indicating other petroleum-based products. For this reason, ASTM E1618 dictates that lab analysts start their examination by ensuring there are five specific peaks on a chromatogram, which must appear at certain ratios in order to be labeled positive for gasoline.<\/p>\n <\/p>\n <\/p>\n According to Reta Newman, a veteran chemist and one of the independent auditors who uncovered problems at the state lab in 2016, the samples in Taylor\u2019s case had not passed this first step. Testifying at the sentencing hearing that afternoon, she agreed with Lentini\u2019s blunt assessment. \u201cThere is no gasoline in these samples,\u201d she testified.<\/p>\n \u201cThere is no gasoline in these samples.\u201d<\/p>\n<\/blockquote>\n<\/figure>\n Newman, the director of the Pinellas County Forensic Lab, gave a quick chemistry lesson. \u201cGasoline is a blended product,\u201d she explained, full of components that are added to improve performance in internal combustion engines. These include a class of hydrocarbons known as aromatic compounds, which are ubiquitous in petroleum-based products, including materials used to furnish modern homes. Newman motioned toward the green courtroom carpet as an example. When such synthetic materials burn in a fire, they \u201cunfortunately break down into aromatic products \u2014 the same compounds that we see in gasoline.\u201d<\/p>\n On a chromatogram from a gasoline sample, aromatic compounds form a specific pattern that can be hard to differentiate from those produced by aromatics in burned synthetic materials. \u201cFortunately for us,\u201d Newman said, there is another kind of hydrocarbon that analysts use to identify gasoline in a fire debris sample. \u201cI apologize for being so nerdy. But isoalkanes are also added to gasoline,\u201d she said. And unlike aromatics, isoalkanes generally do not turn up in burned synthetic material.<\/p>\n Turner had correctly identified aromatic compounds in the fire debris taken from Taylor\u2019s home, Newman said, although the peak patterns \u201cwere much more consistent\u201d with the burning of synthetic material rather than gasoline. But the data showed an absence of isoalkanes. Under ASTM E1618, this should have been disqualifying. Yet Turner had reported the samples positive.<\/p>\n Rockwell, Taylor\u2019s attorney, asked whether this was a plain fact or a subjective opinion. \u201cIf two different scientists look at this, is it very easy to tell that this is either gasoline or not gasoline?\u201d he asked. Newman acknowledged that many cases present samples where there are gray areas. But not here. \u201cThere is no gray area.\u201d<\/p>\n The third and<\/span> last expert witness for the defense was Laurel Mason, a veteran chemist and director of a Georgia lab called Analytical Forensic Associates. Unlike Lentini or Newman, who had only reviewed Turner\u2019s reports and chromatographic data, Mason had actually reexamined the carbon strips used to test the fire debris from Taylor\u2019s home. She found no proof of gasoline or any other ignitable liquid.<\/p>\n There was a haunting irony to Mason\u2019s testimony. She had actually first encountered Taylor\u2019s case in 2018, when one of her lab analysts had examined fire debris samples taken from the home on behalf of Taylor\u2019s homeowner\u2019s insurance company. That analyst found no evidence of an ignitable liquid. The insurance investigator concluded that the cause of the fire was undetermined \u2014 and Taylor\u2019s insurance company paid the claim in full. Had Mason been the analyst first assigned to examine the evidence on behalf of the state rather than the insurance company, Taylor would almost certainly have never been arrested for arson.<\/p>\n Mason had found a number of things alarming about Turner\u2019s work. There was the analysis itself, which was clearly flawed. But she was also concerned about the lab\u2019s handling of evidence. Rockwell had asked for permission to retest the carbon strips after discovering that the fire debris samples themselves had been destroyed by the lab. But the lab resisted providing the strips, offering instead to cut them in two and allow the defense to test one half of each. Posting on a listserv for fire debris analysts in late January, Turner had solicited recommendations for any scientific literature that might support this plan. She was not successful, perhaps because, according to Mason, altering the carbon strips went against best practices for preserving evidence.<\/p>\n Rockwell asked Mason about a strange turn of events that followed her examination of the carbon strips. Shortly after Mason submitted her defense report in February 2025, Turner herself issued an amended report on behalf of the state lab, suddenly altering four of her original findings without explanation. Of the samples she had originally determined to be positive for gasoline, four were now negative. \u201cThe curious thing to me was the documentation,\u201d Mason testified. On the data sheet accompanying the report, where Turner had crossed out four of the original findings, she had written her initials, along with the date: February 26, 2025. Yet the report itself was dated January 2025.<\/p>\n To Rockwell, it seemed clear that the amended report had been deliberately backdated to make it appear as if it had preceded Mason\u2019s report \u2014 a stealth correction designed to circumvent any accountability for the lab\u2019s mistakes.<\/p>\n The lab did not respond to specific questions about the backdated report, but said in a statement its \u201ctechnicians are extensively trained and conduct rigorous reviews of their findings, often re-examining evidence in preparation for depositions or expert testimony.\u201d<\/p>\n Whatever the truth of the timing, it was clearly unusual for an expert to go back and change their conclusions six and a half years later. \u201cI have never seen that before,\u201d Mason said.<\/p>\n In a teal blouse and freshly colored hair, 41-year-old Taylor listened to the expert testimony without expression. She\u2019d lost weight since her last court date, the effect of stress, according to her most vocal advocate Megan Wallace, who Taylor had met at the county jail<\/a>, and who wept in the back of the courtroom for much of the hearing.<\/p>\nNo Gray Area<\/h2>\n
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\n Photo: Florida Bureau of Fire, Arson, and Explosives Investigations<\/span>
\n <\/figcaption><\/figure>\n\u201cI Hope This Can Be Corrected\u201d<\/h2>\n
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