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The Case of Paul Bernardo and Karla Homolka
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Solved case · 1990
Also known as Tammy Homolka's murder · Tammy Homolka's killing

The short answer
Tammy Homolka, 15, died on December 24, 1990 after being drugged and sexually assaulted by Paul Bernardo and her older sister Karla Homolka at the family home in St. Catharines, Ontario; her death was initially ruled accidental until Karla's later disclosures reopened the case.
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Video · YouTube · 28 min · 2020
That Chapter's 28-minute breakdown, the fullest single telling on file.
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The case file
Tammy Lyn Homolka (January 1, 1975 – December 24, 1990) was a 15-year-old Canadian student who grew up in Port Credit and was a grade 10 student at Sir Winston Churchill Secondary School in St. Catharines, Ontario. She was known for her involvement in athletics, including track and field, cross country running, and soccer, her favourite sport.
From early in her relationship with Karla Homolka, Paul Bernardo showed particular interest in Tammy, at one point having Karla pretend to be her sister during sex. In September 1990, Karla agreed to allow Bernardo to rape Tammy and obtained a bottle of Halothane from the veterinary clinic where she worked, intending to use it to sedate Tammy.
On December 24, 1990, Tammy was drugged with a combination of Halcion and alcohol and lost consciousness in the family room in the basement of the Homolka house while her parents and sister Lori slept upstairs. Bernardo and Karla filmed themselves raping her while pressing a halothane-soaked cloth to her nose and mouth to keep her sedated. During the assault, Tammy began to vomit, and the two were unable to revive her. After attempting to conceal evidence of the assault, they dressed her, moved her to her bedroom, and called an ambulance. Tammy did not regain consciousness and was pronounced dead a few hours later at St. Catharines General Hospital. Her official cause of death was listed as choking on her own vomit and was initially ruled an accident.
Approximately three weeks after Tammy's death, Karla and Bernardo recorded a video referred to as "The Fireside Chat" inside the Homolka residence, later shown as evidence at their trial. In the recording, Karla told Bernardo she had enjoyed his rape of Tammy and expressed a wish to leave a rose at Tammy's grave. In another portion filmed in Tammy's bedroom, Karla dressed in her sister's clothing and imitated her while she and Bernardo had sex on Tammy's bed.
The case was reopened after Karla disclosed to her aunt and uncle that Bernardo was responsible for a series of rapes and that she and Bernardo were involved in the murders of Leslie Mahaffy and Kristen French, prompting the Niagara Regional Police Service to reexamine Tammy's death. Plea negotiations for Karla began on February 26, 1993, initially concerning a 10-year sentence in exchange for her testimony; at that time, her role in Tammy's death was not yet known to negotiators. During a March 1993 psychiatric assessment, Karla confessed in a letter to her parents about her involvement in Tammy's death. Two years were added to her sentence for this, and she was formally sentenced to 12 years on July 6, 1993. Bernardo was later convicted of two first-degree murders and two aggravated sexual assaults and sentenced to life in prison without parole.
On July 20, 1993, Tammy's body was exhumed; a wedding invitation for Karla and Bernardo's wedding and some notes were found inside her casket, which other Homolka family members asked to have removed before reinterment. Tammy is interred at Victoria Lawn Cemetery in St. Catharines, Ontario. A 2001 Elm Street magazine article suggested forensic evidence indicated Tammy's death was not accidental and that Karla had deliberately administered an overdose of halothane.
7 dated entries · 1975–1993
Tammy Lyn Homolka is born.
Karla Homolka agrees to allow Paul Bernardo to rape Tammy and obtains Halothane from her workplace.
Tammy is drugged and sexually assaulted by Bernardo and Karla Homolka; she vomits, cannot be revived, and is pronounced dead at St. Catharines General Hospital. Cause of death initially ruled accidental.
Defense lawyer and Crown begin plea negotiations for a 10-year sentence for Karla Homolka in exchange for testimony, before her role in Tammy's death is known.
Karla Homolka, during psychiatric assessment, confesses in a letter to her parents her involvement in Tammy's death.
Karla Homolka is officially sentenced to 12 years, including two years added for Tammy's death.
Tammy Homolka's body is exhumed; items including a wedding invitation are found in her casket.
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Coverage is not a source: every fact in this file rests on the records below.
Official / agencyjustice.gc.caAccessed Jul 10, 2026
PressThe Globe and MailAccessed Jul 10, 2026
EncyclopedicWikipediaAccessed Jul 10, 2026
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