Dateline NBC

Brother's Double Arson Murdered Family

Andrea Canning and Blayne Alexander examine the case of Paul Caneiro, who murdered his brother's family and set fires in two homes to conceal his crimes.

Andrea Canning and Blayne Alexander examine the case of Paul Caneiro, who murdered his brother's family and set fires in two homes to conceal his crimes.

1
28 minJul 22, 2026Dateline NBC

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Talking Dateline: Slow Burn

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Key takeaways

What to know before you press play.

01

The Investigation Details

Learn how investigators determined the family was killed before the house fire and uncovered the brother's role.

7
02

Family Tensions

Explore the growing tension between the two brothers in the years leading up to the killings.

10
03

Victim Impact

Hear Jennifer's mother deliver her victim impact statement and discuss the effect on the Colts Neck community.

11

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Background reading

The context behind the episode.

The Fires

Two Houses, One Night

Responders discovered bodies in one home and a fire at the brother's home hours earlier.

1

The Suspect

Uncovering Paul's Crimes

Detectives found that Paul murdered his brother's family and set fires to misdirect authorities.

1

The Aftermath

Community and Family Grief

The episode covers the community impact and includes a victim impact statement from Jennifer's mother.

1

Questions

Questions to carry into the episode.

How did investigators connect the two house fires in neighboring towns?1
What evidence revealed that the family was killed before the fire started?1
How did the relationship between the two brothers deteriorate over time?1
What was the impact of the murders on the local community?1

Experts

Voices named in the source.

Andrea Canning

Host

15

Blayne Alexander

Host

15

Cassandra Marshall

Dateline Producer

112

Sources and disclosure

Where this guide comes from.

This listening guide was generated from publisher-provided show notes and linked evidence, with AI assistance for structure and clarity.

  1. Publisher show notes

    Blayne Alexander sits down with Andrea Canning to discuss her latest episode, “Slow Burn.” In November 2018, 911 operators in Colts Neck, New Jersey, received reports of a house engulfed in flames. When first responders arrived, they discovered the bodies of Keith Caneiro, his wife, Jennifer, and their two children. Investigators soon determined the family had been killed before the house was set on fire. Just hours earlier, in a neighboring town, authorities responded to another house fire, this time at the home of Keith’s older brother, Paul. As detectives pieced together the evidence, they uncovered the truth – Paul had murdered his brother’s family, and set fire to both homes in an attempt to conceal his crimes and misdirect authorities. Andrea and Blayne discuss how the murders affected the Colts Neck community, and examine the growing tension between the two brothers in the years leading up to the killings. Plus, Andrea shares a clip of Jennifer’s mother delivering her victim impact statement. Later, Dateline producer Cassandra Marshall joins Andrea to answer viewer and listener questions.

    Open source ↗
  2. Publisher show notes

    Have a question for Talking Dateline? Send us a DM @DatelineNBC or leave a voicemail at (212) 413-5252. Your question could be featured in an upcoming episode.

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  3. Publisher show notes

    Listen to the full episode of “Slow Burn”: https://swap.fm/l/dl_slowburn

    Open source ↗
  4. Publisher show notes

    Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

    Open source ↗
  5. Publisher show notes

    Blayne Alexander sits down with Andrea Canning to discuss her latest episode, “Slow Burn.” In November 2018, 911 operators in Colts Neck, New Jersey, received reports of a house engulfed in flames.

    Open source ↗
  6. Publisher show notes

    When first responders arrived, they discovered the bodies of Keith Caneiro, his wife, Jennifer, and their two children.

    Open source ↗
  7. Publisher show notes

    Investigators soon determined the family had been killed before the house was set on fire.

    Open source ↗
  8. Publisher show notes

    Just hours earlier, in a neighboring town, authorities responded to another house fire, this time at the home of Keith’s older brother, Paul.

    Open source ↗
  9. Publisher show notes

    As detectives pieced together the evidence, they uncovered the truth – Paul had murdered his brother’s family, and set fire to both homes in an attempt to conceal his crimes and misdirect authorities.

    Open source ↗
  10. Publisher show notes

    Andrea and Blayne discuss how the murders affected the Colts Neck community, and examine the growing tension between the two brothers in the years leading up to the killings.

    Open source ↗
  11. Publisher show notes

    Plus, Andrea shares a clip of Jennifer’s mother delivering her victim impact statement.

    Open source ↗
  12. Publisher show notes

    Later, Dateline producer Cassandra Marshall joins Andrea to answer viewer and listener questions.

    Open source ↗

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