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- Evidence that looked like blood in red Solo cups was never tested by forensic authorities in the Karen Read trial.
- A forensic expert said under oath that no one confirmed the substance was human blood.
- Issues with tracking evidence, like mislabeled bags and using grocery bags, caused big worries about procedure.
- The defense says the untested evidence might support the idea that someone else, not Read, hurt John O’Keefe.
- Experts say the untested samples could still be analyzed and might change the case outcome.
The Karen Read trial, which is about the sad death of Boston police officer John O’Keefe, has gotten national attention. People are watching because of the well-known defendant and the emotional situation. But they are also focused on what might be a big forensic mistake: blood evidence that wasn’t tested, kept in red Solo cups. 
Claims that important evidence might not have been tested have caused people to look closely at how authorities handled the investigation. This brings up wider points about police procedures, who is responsible, and what this means for getting justice in the John O’Keefe murder.
Background on the Karen Read Case
Karen Read used to teach and worked in finance. She was dating Boston police officer John O’Keefe. They had been together about two years. Then, on January 29, 2022, something terrible happened. O’Keefe was found badly hurt and not conscious in the snow outside a house at 34 Fairview Road in Canton, Massachusetts. He died soon after.
Read is accused of hitting O’Keefe with her Lexus SUV while backing up during a snowstorm. This happened after they had been at a gathering late at night. She is accused of leaving him in the cold weather. Prosecutors have charged her with second-degree murder, vehicular manslaughter, and leaving the scene of a fatal accident.
The defense says Read is being unfairly blamed. They claim O’Keefe might have been hurt inside the house at Fairview Road during a fight after the party. They do not believe Read hit him with her car. Instead, they argue that someone else—maybe a federal law enforcement officer who was there that night—played a part in what happened.
Key Forensic Evidence Collected — and What Wasn’t Tested
One of the main disagreements in the Karen Read trial is about the forensic materials found at the scene. This is especially true for a reddish-brown liquid found on the lawn where O’Keefe was discovered. Police in Canton reportedly used swabs to collect the substance. They put the samples into red Solo cups for a short time. Later, they sent these cups to the Massachusetts State Police Crime Lab to possibly be tested.
Maureen Hartnett, a forensic scientist at the crime lab, said when she testified in May 2024 that she got the swabs but never tested what was in them. What is more, no one even tried to find out if the liquid was human blood or some other biological material. This big mistake surprised people in the courtroom and legal experts.
Besides the samples in Solo cups, investigators collected bits and pieces and blood spots from O’Keefe’s clothes. They also saw damage on the back of Read’s Lexus, like a broken taillight and scratches. But in a trial where both sides really depend on physical evidence to show when things happened and who is responsible, not testing what looked like “blood” from where the victim was found is very worrying.
Chain of Custody & Procedural Lapses
Adding to the problem are the many issues with how evidence was collected and kept safe at the crime scene. Rules for tracking evidence—the basic standards that make sure evidence is real and hasn’t been messed with—were described as very careless.
Here are some notable things that were not done right:
- Evidence was put in Stop & Shop grocery bags instead of proper evidence kits.
- A personal leaf blower (not official police gear) was used to move snow around the crime scene.
- Evidence bags had errors on the labels. They had wrong counts of items or incorrectly named things like taillight pieces.
- Witnesses walked around the scene where O’Keefe’s body was found. This could have messed up the area.
Paul Mauro, a former investigator with the NYPD, said that while problems with tracking evidence might make it less believable, they don’t always mean it can’t be used in court. “You test it anyway, even if there is no chain of custody,” he said (Fox News, 2024). But these mistakes do create room for doubt. They make it more important to know if all available evidence was checked properly.
Why Wasn’t the “Blood” in Solo Cups Tested?
Maureen Hartnett’s statements when she testified gave limited reasons, which sounded like typical office policy, for why the suspicious samples weren’t tested. She said the Massachusetts State Police Crime Lab policy puts the job of asking for more tests on the investigating officers, not the lab scientists. Without that official request, scientists like Hartnett do not do forensic analysis on their own. This is true even if the samples might give important information like DNA types or confirm if it is blood.
This brings up a key issue with how things were done. Was it just a simple clerical mistake by investigators? Or did someone avoid testing the samples on purpose because of what they might show?
Hartnett confirmed that the red Solo cups were sent in and contained swabs of reddish-brown material. But she also said no one followed up to find out exactly what had been collected. Not doing anything is even more concerning when we think about where these swabs were taken. They were collected at the exact spot where John O’Keefe was found not fully conscious in the snow, bleeding. He was later pronounced dead there.
Legal Results of Untested Evidence
Not testing evidence that could be very important can make the prosecution’s case weaker. Or it can give the defense chances to show there is reasonable doubt. In a murder trial like this, the stakes are huge. With charges as serious as second-degree murder and vehicular manslaughter, every bit of forensic evidence could either support a conviction or show the person is not guilty.
From a legal point of view, not testing these materials could be seen as a “Brady violation.” This is when hiding or ignoring evidence that could help the defendant goes against their constitutional rights. No one has formally accused anyone of this problem yet. But the defense could argue that if this material had been tested, it might have supported a different explanation of the crime.
Defense Strategy and Other Ideas
Karen Read’s defense team is using the fact that forensic work wasn’t finished to question if the whole story from the prosecution is believable. They have suggested that John O’Keefe might have gone into the Fairview Road house. They think he got into a fight with one or more people. Then, they believe he was later dragged or put outside. There, they say, he eventually died from injuries and the cold weather.
One person the defense is very interested in for their other idea is Brian Higgins. He is a federal agent who was at the after-party. People have openly wondered if Higgins or someone else in the house was involved. This talk has gotten into what the public is saying and what has been filed in court.
Importantly, if DNA linked to someone besides Read were found in the Solo cup evidence, it would strongly back up the idea that someone else caused O’Keefe’s injuries. And it might even suggest someone tried to cover things up.
Why Forensic Testing Matters in Big Trials
In cases where big life decisions depend on what science finds, not testing all the available evidence can hurt the effort to get justice. In the Karen Read trial, not analyzing the reddish-brown material is not just a missed chance. It can be argued that it is a failure of investigative duty.
Modern forensic science has the tools to check almost any biological samples. They can test for DNA, blood type, illegal drugs, or signs of poisoning. Those tests could answer basic questions:
- Was John O’Keefe already hurt before someone left him outside?
- Was his blood in places that don’t fit the prosecution’s story?
- Was another person’s DNA found at or near the body?
Not trying to find the answers to these questions is more than just a procedural mistake. It gets in the way of the truth.
Public Trust and Who is Responsible
People trust the criminal justice system more when it is open, steady, and does its job well. When police or forensic labs are careless or don’t seem to care—like keeping evidence in grocery bags or skipping standard testing rules—it makes people trust the whole system less.
This trial shows how small mistakes made by investigators or labs can turn into big arguments in court. For people and those accused of crimes, trusting the legal system means knowing that every piece of evidence will be handled, checked, and shared correctly.
Could the Evidence Still Be Tested?
Forensic experts say yes. If the original swabs from the red Solo cups were kept correctly, modern testing could still give useful information. Worrying about things breaking down over time is always a point. But many biological materials are still usable for months, even years, if stored in the right way.
Testing the substance now could:
- Confirm if it was human blood.
- Find its blood type or DNA source.
- Find poisons, alcohol levels, or other substances in the sample.
Finding something new from these tests done late could completely change the trial’s result. It could either make current suspicions stronger or show they are wrong.
What Former Investigators and Legal Experts Say
Paul Mauro, a security consultant and former NYPD investigator, has spoken clearly about how important forensic testing is, even if there were problems with procedures. He stresses that even if there are worries about how evidence was tracked, testing can still be valuable. This is especially true when things are kept open during court proceedings.
“If they cared enough to grab it and sealed it, however imperfectly, at least test it,” Mauro said. His point shows a main idea of forensic science. Evidence that isn’t perfect is not worthless. A swab in a Solo cup might not meet the strictest standards. But completely ignoring it could stop justice from happening, both for the person who died and the person accused.
Recent Trial News and Testimonies
The trial keeps having surprises with important witness testimonies and cross-examinations. Differences in digital timing information, witnesses saying different things, and experts giving opposing opinions have made things harder to understand.
In a recent court event, a second expert on digital forensics disagreed with the defense’s claims about Google Timeline data. This made a previously suggested alibi weaker. This, along with doubts about physical evidence like the red Solo cups, means the case more and more depends on who is believable, technical skill, and careful procedures—or the lack of them (Fox News, 2024).
Wider Issues in Crime Scene Handling
The Karen Read case is not the first time worries have been raised about forensic procedures, and it probably won’t be the last. Around the United States, several well-known cases have had problems because evidence was collected in a messy way, records were not kept right, or people were wrongly convicted and later found innocent because DNA evidence that wasn’t tested before showed this.
These repeated problems point to a bigger issue with the system. There is a need for national standards for handling crime scenes and forensic testing. Using checklists, recording things digitally, having central systems for requesting tests, and training officers again could all help stop similar mistakes in the future.
Fair Trial or Forensic Failure?
As the trial goes on, one main question is being talked about: Is this case a fair trial based on facts? Or is it a forensic failure that could stop justice for either the person who died or the person charged? The untested Solo cups have become more than just a strange detail. They now show how high the stakes are when evidence is not handled right or is ignored.
For people watching, the Karen Read trial is not just about deciding if someone is guilty or not guilty in the John O’Keefe murder. It is a clear look at a system that must, at the very least, test the blood before deciding.
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