Drew Peterson is a former Illinois police sergeant whose name became synonymous with a high-profile domestic homicide investigation and subsequent criminal proceedings. This overview explains his role in the 2004 death of Kathleen Savio, the 2009 death of Stacy Peterson, and the judicial outcomes that followed. As an evergreen explainer, this profile focuses on verified facts from court records, law enforcement reports, and publicly available sentencing documentation. It presents a clear, durable summary of who Drew Peterson is, what occurred in the investigations and trials, and how the case has been resolved in the legal system.
Background and Professional Profile
Before the homicides came to national attention, Drew Peterson worked as a police sergeant in the Bolingbrook Police Department in Illinois. He served for more than two decades, much of it in uniformed patrol and later in investigations. Colleagues and supervisors described him as a methodical, detail-oriented officer with a strong presence. His professional record included training in domestic investigations and crime scene processing, which later defense teams would highlight to question aspects of the handling of the cases. Personal history included multiple marriages, with the most scrutinized involving Kathleen Savio and later Stacy Peterson.
Kathleen Savio Relationship and 2004 Death
Peterson married Kathleen Savio in 1981, and the couple divorced in 1999. After the divorce, they continued to share a residence for a time due to financial and co-parenting circumstances. In March 2004, Savio was found dead at the bottom of a large residential stairwell in her home. The initial ruling was accidental death, attributed to a slip and fall. Investigators revisited the scene after Stacy Peterson disappeared in 2007, leading prosecutors to reclassify the case as a homicide. Jurors later heard detailed testimony about patterns of controlling behavior, financial disputes, and prior domestic incidents involving Peterson.
Stacy Peterson Disappearance and 2009 Developments
Stacy Peterson, Drew Peterson’s fourth wife, vanished in October 2007. Law enforcement conducted extensive searches of his property and nearby areas. During the investigation, Peterson gave multiple media interviews, portraying himself as a cooperative former suspect and describing Stacy as unreliable. In 2009, he was arrested and charged with first-degree murder in Kathleen Savio’s death following a change in the medical examiner’s ruling. Prosecutors argued that he killed Savio to prevent her from receiving a larger share of a potential settlement and later killed or orchestrated the disappearance of Stacy to cover up the earlier crime.
Key Legal Proceedings and Outcomes
The case proceeded through multiple hearings, motions, and trials. A major trial in 2012 ended in a mistrial due to alleged misconduct by a juror. In 2013, Peterson was convicted of the second-degree murder of Kathleen Savio. He received a 38-year sentence, to be served concurrently with a federal sentence for an earlier weapons charge. Later, in a separate proceeding tied to his testimony in a civil suit and allegations of witness tampering, he was sentenced to additional time. Stacy Peterson’s remains have never been found, and no one has been charged in her disappearance, though prosecutors maintained she was killed by or with the involvement of Drew Peterson.
Verifiable Case Data at a Glance
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Name | Drew Peterson | Law enforcement and court records |
| Former Occupation | Illinois police sergeant (Bolingbrook PD) | Employment records, department listings |
| Kathleen Savio Death Date | March 1, 2004 | Coroner and law enforcement reports |
| Stacy Peterson Disappearance Date | October 28, 2007 | Police reports and missing persons filings |
| Savio Homicide Conviction Year | 2013 | Court verdict and sentencing documentation |
| Sentence for Savio Murder | 38 years (second-degree murder) | Judicial sentencing order |
| Federal Sentence (weapons) | Concurrent 8-year term | U.S. District Court records |
Accusations, Defense Arguments, and Outcomes
The prosecution framed the case around a pattern of control, financial motive, and conduct inconsistent with the stories provided after Savio’s and Stacy Peterson’s disappearances. Expert testimony addressed bloodstain patterns, autopsy findings, and the likelihood of the stairway fall being accidental. The defense challenged the reliability of the homicide reclassification, media coverage, and alleged misconduct by investigators and the jury. After the mistrial, Peterson was convicted in the second retrial for Savio’s murder. No one has been charged in Stacy Peterson’s disappearance, and her body remains undiscovered.
Current Status and Public Interest Context
Drew Peterson is incarcerated and has exhausted most direct appeals of his murder conviction, with limited options remaining through post-conviction proceedings. The case retains public interest because it illustrates challenges in proving domestic homicide without a body in the primary victim, the impact of media coverage on proceedings, and questions around police conduct and evidence preservation. It also remains a reference point in discussions about changes in how domestic violence and death investigations are handled. Coverage of the case continues in true crime media, legal analyses, and documentaries, reflecting its ongoing relevance in understanding criminal justice procedures and high-profile domestic cases.
Key Takeaways
- Drew Peterson is a convicted murderer, not an unconvicted suspect, for the death of Kathleen Savio.
- Stacy Peterson disappeared in 2007 and her case remains unsolved, with no charges filed against anyone.
- Peterson’s background as a police officer informed both the investigation and the public narrative around evidence handling.
- Multiple trials and a mistrial preceded his ultimate conviction in 2013 on second-degree murder charges.
- He is serving a 38-year sentence for the murder of Kathleen Savio, to be served concurrently with a federal weapons sentence.
This explanation reflects information available from court documents, reputable news reporting, and legal proceedings as of the time of writing. It is intended for evergreen educational purposes, helping readers understand who Drew Peterson was, what occurred in the related investigations and trials, and where the matter currently stands within the justice system.
Related topics for further context include domestic violence investigations, media influence on high-profile cases, cold-case reinvestigation techniques, and the legal standards for homicide convictions without physical remains.
References and Source Types
- Court records and sentencing documents related to Drew Peterson trials.
- Law enforcement reports from the Bolingbrook Police Department and Will County Sheriff’s Office.
- Coroner and medical examiner reports for Kathleen Savio and statements regarding Stacy Peterson.
- Reputable news organizations’ coverage of major hearings, trials, and appellate outcomes.