The dispute that became an obsession: the story of Kosowski murder case of a Lawyer

 

what a nightmare on a bad day: Have you ever thought about how going to the bathroom might take a sudden turn, where an attorney vanished and a bath room trip, become a murder mystery that has everyone thinking? On a chilly March morning in 2023, a Largo attorney headed down the hall to the bathroom and disappeared. Three-and-a-half years later, invitigators had his alleged killer in his orange jail clothes, staring down the State of Florida and representing himself. this is just In 15 minutes read article.

The Case of Dr. Tomasz Kosowski, who was convicted of first degree murder of attorney Steven Cozzi and sentenced to life in prison for a murder that will live in infamy as one of the strangest, most bizarre cases in recent Florida legal history.

Imagine a murder trial where there was no body or confession or eyewitness and the defendant decided to go it alone and was found guilty, and many thinks this case isn't solved and there is more to the case we don't know.

Many believe that this murder case rewrites history of the law.  

Do you want to know more…

The dispute that became an obsession

The story begins with litigation, not violence. It started in 2019 when Kosowski, a Dartmouth-trained plastic surgeon, filed a lawsuit against former colleagues about a medical billing dispute and a bad online review. Steven Cozzi, a partner at Blanchard Law, was representing some of the defendants.

In 2022, having dismissed his own lawyers and assumed the role himself, Kosowski's conflicts with Cozzi grew more direct and more personal. Prosecutors alleged the professional rivalry grew into an obsession.

- January 2023 - While attending a deposition break, Kosowski finds Cozzi in the office bathroom and allegedly calls him "a scumbag" and says he'll "win in the end," according to Cozzi. Cozzi emails a colleague about the harassment, and his partner buys pepper spray and fixes their security camera because he is feeling worried. Meanwhile, Cozzi is followed home from work after Kosowski searches for his address online.
- Around a week prior to disappearance - Employees at another business locate Kosowski in an electrical closet, wearing a surgical mask and says he's fixing a power outage. Authorities recover his fingerprint from the scene. They also discover a torch lighter and a box containing a wagon similar to the one seen in the second surveillance video.
- March 20, 2023 - The day before Cozzi takes off, Kosowski writes a nasty note to the civil judge rejecting new discovery (the much-quoted line about "hastily prepared tripe" pops up in secondary reporting but is not cited in the primary news report).

 March 21, 2023: the disappearance

- ~8:00 a.m. - Kosowski departs from his home in Tarpon Springs in a Toyota Tundra.
- 8:30 a.m. (roughly) - Camera shows a man walking into the Blanchard Law building with a large box.
- ~9:50 a.m. – Cozzi walks away from his desk to go to the bathroom, with a draft email still open, music playing from his phone. No one ever sees him alive again.
- 10:22 a.m.- In new clothes, a man pushes the heavy wagon out of the building and tries to load it into the Tundra.
- ~10:30 a.m. – Cosowski makes a teleconference in the parking lot at a civil case that wasn't scheduled. He tells colleagues to dial him in, as he was waiting for a client call.4
- EVEN LATER- another coworker finds the bathroom smells of bleach and alcohol, with traces of blood on the walls, on the toilet seat, and on the floor. Cozzi is missing.

Kosowski, prosecutors say, then made a pit stop at his home on the water, took the body of the boat out for a four-hour drive to a dumpster off the Tamiami Trail and then went to Miami to perform the surgeries he had scheduled for the next day.

Arrest and forensics

- March 23, 2023 - At a Collier County landfill, the dumpster is taken away. Days later, the investigators scour the land for several days but find no trace.
March 25, 2023 (4 days later) police arrest Kosowski, after discovering about $280,000 in cash in his trucks, as well as a fake passport, and what law enforcement called a "murder bag"- containing multiple masks, brass knuckles, a taser, a crowbar, and a syringe of succinylcholine-a muscle relaxant that can make the victim helpless while still completely conscious and able to feel pain. Inside the car was a ballistic vest found to have Cozzi's blood on it. DNA analysis eventually matched a number of blood stains in the bed of the truck, garage floor, and a second car to Cozzi.

The trial and verdict

 September 16, 2026 - Kosowski forfeits his right to a jury in the guilt and penalty phases of his trial and proceeds to a bench trial in front of Circuit Judge Joseph Bulone, acting pro se (without counsel).

6-7 days of testimony- State has a wholly circumstantial case. Kosowski does some cross of a handful of witnesses, rants about how little she was allowed access to evidence in jail, refuses to make an opening statement, calls no witnesses, and does not testify.

September 23, 2026 - During a 20-minute closing, Kosowski asserts the State didn't even prove Cozzi was dead and that the disposal theory was "impossible." Judge Bulone adjourns for about 15 minutes before returning with Kosowski guilty of first-degree premeditated murder. Victim impact statements, judge finds two of three factors proven beyond a reasonable doubt but not the third.

What comes next

• October 8, 2026 - Spencer hearing in which the State argues against the death penalty and court appointed defense urges mitigation.
• Later, to be announced - Sentencing: death, or life without parole.

Analyzing the Legal Arguments

What's happening with the law? When you take out the true-crime drama, here's what's really difficult for the law to say about this situation. Every question is one we should know the answer to.

 1. Can you be charged with murder without a body?

Yes-and Florida has beaten its own record on this. The fact that they do not have a body is not a legal impediment to the conviction for murder; it's an evidentiary one. The State has to establish, beyond a reasonable doubt, both that the victim is dead (the corpus delicti, or "body of the crime," does not have to be a body) and that the death was the result of a crime.

For Kosowski's defense, the first prong was in the spotlight. In his closing, he challenged the State to 'would have you believe that everything is very clear-cut,' and if that theory was perfect, 'then the payoff is that you find Steven Cozzi's body in that landfill.' No body meant no evidence of death, he said.

But that's the flaw in the submission: Florida law permits death to be established by circumstantial evidence, and the circumstantial picture was fairly clear: another person's vanishing during the workday, leaving personal effects behind; enough of that person's blood at the scene to shower the murder vehicle(s) and garage with it; monitoring of a load the size of a human being rolled out of the home; a trail of evidence to the landfill supported by cell-phone signals and a garbage-truck driver who was convinced something "vile" had been in the trash. Even excluding remains, there is sufficiency to establish death. Kosowski's "no body, no proof" argument is a rhetorically elegant but legally hollow reading of the law.

2. Legal Sufficiency of Circumstantial Evidence

 

Have you ever asked yourself, "How much circumstantial evidence will it take to convict someone?" No surprise here: Florida threw the curve ball in "Bush v. State" (2020), adopting the federal "Jackson v.

 

Virginia" sufficiency test to evaluate circumstantial evidence.

 

To determine whether a rational fact-finder could find each element proven beyond a reasonable doubt, the State need not eliminate every reasonable hypothesis of innocence as it formerly would.

 

Here's why that shift is so significant in this case. As far as his defense was concerned, there was an alternate list of possibilities: the evidence was planted, the map was inconsistent, the cause of death was never established. If we were in the 2010s, the State would have been on the hook for striking down every other possibility, and Kosowski's defense might have had some more elbow room. With the rule from Bush, all the State needed to do was persuade the Court that guilt was a permissible conclusion, which explains why "totality" figured so prominently in the State's closing argument.

 Kosowski's heaviest hit was that the logistics "were physically impossible." He even offered to get the prosecutor into a trash bag and to coax the medical examiner into the cart to get dragged across the courtroom to show that one person could not move that body. The judge threw out these demos. Legally, "very difficult" does not mean "did not occur," and other evidence links Kosowski to the deed, so difficulty is no bar to sufficiency.

 

3. Self-imaging & waiver of jury: what choices by the defendant count most (about self-restraint)?

 Why go pro se in a death penalty case? Two constitutional rights conflicted with wisdom here, and Kosowski went overboard, to his own peril.

     The right to go it alone is set in stone in Faretta v. California (1975). You're entitled to waive counsel and proceed pro se if you're competent and do so knowingly-even in a capital case-even if everyone else in the courtroom believes you're making a big mistake.

 Courts do a Faretta inquiry to find out whether you're aware of and waive your rights, but they cannot foist a lawyer on someone capable of waiving one.

 The Death Penalty Information Center points out that pro se capital defendants almost always are convicted and sentenced to death, but that's your right, not the court's.

 The waiver of a jury was another gamble. Florida allows a defendant to waive a jury for both guilt and penalty, and Kosowski waived both. That gets one judge to make all the decisions about the guilt and penalty phases, including whether or not he lives - almost unheard of in death penalty cases.

 For one person and removes the ability of a lone juror to stand against a death recommendation.

 Since 2023, Florida needs only an 8-4 jury recommendation for death, but Kosowski lost that safeguard and handed it over to a judge.

 Why roll the dice at all? Kosowski never made that point explicitly, but his conduct made it clear he was more interested in undermining the State's proof of death than he was putting on a mitigation case. That's the topic the next section covers.

 

4. The penalty phase: aggravators, the HAC denial, and forced mitigation
 

In the death penalty trial, the state must prove at least one of the statutory factors beyond a reasonable doubt. Judge Bulone found two.

•  Motivated for monetary purposes (financial gain) - this motivation is associated with the theory that Kosowski murdered Cozzi to open the way for a civil action.
• Cold, calculated, and premeditated (CCP) with no B.S. of moral/legal justification - based on research and evidence about the victim, the drug, the carts, and planning... Surveillance and closet-hiding.

 

Interestingly, the judge did not find the killing heinous, atrocious, or cruel (HAC). As the judge noted, Bulone left room for the burden of proof: without a body, the way the killing happened cannot prove beyond a reasonable doubt that it was a heinous, atrocious or cruel killing. It "could have been a very heinous, atrocious and cruel death," the judge said, but that wasn't enough.

 This time, the absence of a body pushed against the State-the same absence that spared Kosowski-could and did push against aggravation.

 

What a stark illustration that "probably" does not satisfy "beyond a reasonable doubt," regardless of which side it favors.

 Legally, the HAC denial doesn't alter the death eligibility-a single aggravator, which was present, is enough-but it does make the weighing of aggravation versus mitigation tougher.

 Finally, the constitutional response: Kosowski declined to submit mitigation evidence, waived a psychological exam, and directed his counsel to move to remove the death penalty. No one can be allowed to walk themselves to death without a fight-and the Eighth Amendment reinforces that one "special defense" in capital litigation is the provision of mitigation evidence. So, in the most unlikely of scenarios, independent counsel was appointed (against Kosowski's preference) to seek and offer mitigation at the October 8 _ (a rarely-used aspect of Florida's post-conviction procedure, named after Supreme Court case, from when the defendant gets a third and final chance at mitigation in the sentencing phase). This retained counsel may call others-perhaps a mother-if the client declines to testify; no one can allow themselves to be executed without a fight.

 

The Takeaway

 What's the takeaway for the legal world? It's not that "no-body" prosecution isn't legally feasible; it's an evidentiary challenge, and Florida's new post-Bush rules allow the State to power through. For those tracking death-sentencing standards, it's quite a package: the bifurcated jury waiver, a Faretta waiver, and the knife guard, all on one pack.

 And it's amazing how a single missing body can go from 'failing to beat the presence of guilt' to 'negating the most potent aggravator. Steven Cozzi's family still has no body to bury. What they do have is a verdict-and, in time, a sentence-told one judge at a time, in a case built from the footprints of a man nearly invisible. Take any ideas on how justice has been served?