Prosecutors across the country are charging people with murder for sharing or selling drugs that killed someone. The legal label varies by state. Some call it drug-induced homicide. Others call it delivery resulting in death, depraved-heart murder, or felony manslaughter. The strategy is the same: treat an overdose death as a homicide and put the supplier on trial for a killing.
Defense lawyers in 2026 are beating these cases more often than the headlines suggest. The reason is causation. In a fentanyl-era toxicology report, the decedent almost always has multiple substances in their system. Proving that a specific dose, from a specific person, on a specific night, was the cause of death is harder than juries assume and harder than many prosecutors can prove.
This article walks through the statutory landscape, the controlling Supreme Court precedent, the medical-examiner battles that decide most trials, and the defense strategies that are working in 2026 dockets.
A patchwork of state and federal laws
As of January 2025, 31 states and the District of Columbia have laws authorizing some form of homicide-style charge for a drug delivery that results in death, according to the Center for Public Health Law Research at Temple. That is a 33% increase from the 24 states tracked in 2018. The often-cited "25 states" figure is a conservative floor; the real count keeps climbing.
Twenty-four jurisdictions impose mandatory minimums. Arizona, Colorado, Florida, and Oklahoma authorize the death penalty for the offense in at least some configurations. Only six states provide an affirmative defense based on a good-faith effort to summon emergency medical help for the overdose victim. The LawAtlas and PDAPS dataset tracks the state-by-state details, including whether each statute classifies the offense as murder, manslaughter, or a freestanding delivery-resulting-in-death charge.
Federal prosecutors have their own tool. Under 21 U.S.C. § 841(b)(1)(C), a defendant convicted of distributing a Schedule I or II controlled substance faces a 20-year mandatory minimum if death "results from the use" of the drug. The phrase has driven a decade of litigation about what "results from" actually requires.
Burrage and the but-for rule
In Burrage v. United States, 571 U.S. 204 (2014), the Supreme Court resolved that question for federal cases. The Court held that the death-results enhancement in § 841(b)(1)(C) requires but-for causation: the government must prove the distributed drug was the cause of death, not merely a contributing factor, unless the drug was independently sufficient to kill on its own.
The facts in Burrage previewed the modern fight. The decedent had heroin, alprazolam, clonazepam, and oxycodone in his system. Government experts could not say he would have lived if the heroin had been removed from the mix. The Supreme Court vacated the conviction and the 20-year sentence.
That ruling is the playbook for defense lawyers in 2026. Almost every fatal overdose now involves more than one drug. Fentanyl combined with benzodiazepines, fentanyl combined with stimulants like methamphetamine or cocaine, and fentanyl combined with alcohol or other opioids are the modal toxicology profiles. When a medical examiner cannot say with confidence that the decedent would have lived without the specific substance traced to the defendant, the federal case is in trouble.
State courts diverge
State courts have not all adopted Burrage-equivalent jury instructions. Some require strict but-for proof. Others allow looser "contributing cause" or "substantial factor" framings that let juries convict even when other drugs may have been independently fatal.
That divergence has produced a steady stream of appellate fights. Defense lawyers are pressing trial courts to adopt Burrage-style instructions and preserving the issue for review when judges refuse. The Columbia Human Rights Law Review's analysis, When Cause-in-Fact Is, in Fact, Not the Solution, catalogs the doctrinal gaps that defense counsel are exploiting, including the "independently sufficient cause" carveout that prosecutors sometimes invoke to sidestep but-for proof.
The medical examiner is the case
Most drug-induced homicide trials are won or lost on the cause-of-death determination. The National Association of Criminal Defense Lawyers' Drug-Induced Homicide Defense Toolkit lays out the technical battlefield in detail.
Postmortem redistribution of fentanyl can cause concentrations in heart blood to differ substantially from peripheral blood, complicating estimates of the antemortem dose. Time of ingestion is rarely knowable from a body alone. Cause-of-death certifications often list "mixed drug toxicity" or "combined drug intoxication," language that on its face concedes the prosecution cannot identify a single but-for agent.
Defense teams retain independent forensic pathologists to challenge the state's methodology under Daubert, contest the time and order of ingestion, and force the medical examiner to acknowledge on cross-examination that the death is consistent with several causal stories, not just the prosecution's. A peer-reviewed analysis archived at PubMed Central walks through why mixed-drug toxicology routinely defeats but-for proof and what forensic standards a careful examiner should apply.
Who actually gets charged
The public image of a drug-induced homicide defendant is a commercial dealer at the top of a supply chain. The data tells a different story.
Research from the Health in Justice Action Lab at Northeastern University and analysis published in the American Criminal Law Review at Georgetown find that roughly half of drug-induced homicide defendants are friends, family members, romantic partners, or co-users of the decedent. Many shared a stash. Some were the person who called 911. Some were both the person who supplied the drug and the person whose own use began that same night.
Media-tracked DIH prosecutions rose more than 300% between 2011 and 2016, from roughly 363 to about 1,178 mentions per year, according to data compiled by Health in Justice and the Drug Policy Alliance. The trajectory accelerated through the fentanyl era.
A 2024 empirical study of North Carolina prosecutors published in Drug and Alcohol Dependence Reports (Beletsky et al.) found that DIH charging is often driven by victim-family pressure and the prosecutor's expressive goals, not by evidence that prosecutions deter overdose deaths.
Good Samaritan laws and the chilling effect
Forty-nine states and the District of Columbia have 911 Good Samaritan overdose laws. These statutes immunize a caller from arrest or prosecution for low-level drug possession when the caller summons help for an overdose. Research links these laws to roughly a 15% reduction in overdose deaths.
Drug-induced homicide laws cut against that protection. Possession immunity does not extend to homicide investigations. A person who calls 911 for a friend who later dies can be charged with murder for the same conduct that the Good Samaritan statute was designed to encourage. Only six states have written an affirmative DIH defense for those who sought medical help. The Legislative Analysis and Public Policy Association maintains a state-by-state map of where these protections do and do not align. Public-health advocates argue the gap chills exactly the calls that save lives.
The policy debate
The prosecutor-side argument is articulated in the National Association of Attorneys General's Prosecuting Drug Overdose Cases: A Paradigm Shift, which frames DIH charges as a response to a mass-casualty drug crisis and as a tool for moving up the supply chain.
The reform-prosecutor and harm-reduction critique runs through Fair and Just Prosecution's policy brief and the Drug Policy Alliance's fact sheet. Their argument is that DIH prosecutions sweep up users and intimates of the decedent, undermine Good Samaritan calls, and have not been shown to reduce overdose mortality.
Virginia as a 2026 template
Virginia's 2023 to 2024 legislative debate is the leading recent example of how states are negotiating these tradeoffs. Governor Glenn Youngkin pushed to make fentanyl distribution resulting in death a felony homicide regardless of intent. The legislature rejected that bill but enacted new fentanyl-distribution and pill-press penalties. The compromise statute included a narrow Good Samaritan carveout. Reporting from Filter and Virginia Mercury tracks the negotiation and the public-health pushback.
Federal direction of travel
At the federal level, S. 380 in the 118th Congress, the Felony Murder for Deadly Fentanyl Distribution Act of 2023, sought to import a felony-murder theory into federal fentanyl cases. The bill did not pass, but it signals continuing congressional appetite for harsher causation regimes that would erode Burrage's but-for protection.
Defense lawyers in 2026 are watching state high courts for cases that test how strictly Burrage-equivalent reasoning will be applied to state DIH statutes, and watching the federal circuits for splits on the "independently sufficient cause" carveout.
The defense checklist
Defense attorneys handling a drug-induced homicide case in 2026 are running a recognizable playbook drawn from the NACDL toolkit and post-Burrage case law:
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Demand a Burrage-style but-for causation jury instruction; preserve the issue if the trial court denies it.
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Retain an independent forensic pathologist before trial. Do not let the state's medical examiner go unchallenged.
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File Daubert motions targeting the methodology behind the cause-of-death determination, including postmortem redistribution and time-of-ingestion assumptions.
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Develop a knowledge-of-substance defense where the statute requires knowing distribution of a specific drug.
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Invoke Good Samaritan affirmative defenses in the small number of states that recognize them.
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Investigate whether the decedent obtained drugs from multiple sources before death.
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Cross-examine the toxicology to surface every other substance in the decedent's system and every other plausible causal pathway.
The throughline is that the prosecution's burden in a fentanyl-era homicide case is heavier than the charging document suggests. In many cases, that burden is the case.
If you are under investigation
Drug-induced homicide is among the most technically complex prosecutions in criminal law. Outcomes usually depend on forensic decisions made early: which independent pathologist to retain, which Daubert challenges to file, which jury instruction to fight for, and how to handle any statements the defendant made to first responders or police. If you or someone you know is under investigation in connection with an overdose death, the speed at which you secure experienced criminal-defense counsel can shape what evidence is preserved and what defenses remain available at trial.
Related reading
Sources
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Rules for Establishing Causation in Opiate/Opioid Overdose Prosecutions: The Burrage Decision (PMC)
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Drug-Induced Homicide as a Response to Overdose (Health in Justice Action Lab, Northeastern)
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Fact Sheet: Drug-Induced Homicide Laws (Drug Policy Alliance)
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Good Samaritan Fatal Overdose Prevention and Drug-Induced Homicide: Summary of State Laws (LAPPA)
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Prosecuting Drug Overdose Cases: A Paradigm Shift (National Association of Attorneys General)
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VA Creates New Fentanyl Homicide Charge, With Limited Exemptions (Filter)
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States stiffen penalties for fentanyl, despite public health concerns (Virginia Mercury)
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S. 380, Felony Murder for Deadly Fentanyl Distribution Act of 2023 (Congress.gov)
Note: This article contains AI-assisted content and has been reviewed by our editorial team.
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