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Murders of Blake and Mary-Jo Hadley

On July 16, 2011, in Port St. Lucie, Florida, 17-year-old Tyler Hadley killed his parents, Blake and Mary-Jo Hadley, with a hammer and then hosted a house party while their bodies were hidden in the master bedroom. He was later convicted and sentenced to life in prison.

TYLER Joseph Hadley
TYLER Joseph Hadley — Credit: Florida Department of Corrections · Public domain

Overview

On July 16, 2011, Blake Hadley, 54, and Mary-Jo Hadley, 47, were killed in their home in Port St. Lucie, Florida, by their 17-year-old son, Tyler Hadley. According to Wikipedia's account of the case, Tyler had decided how he wanted to carry out the killings weeks in advance and had reportedly told a friend that holding a large party after killing his parents "had never been done before."

The killings

On the afternoon of the murders, Tyler posted on Facebook that he might have a party that night. After his parents returned home, he hid their phones and locked the family's dog in a closet. Shortly before 5:00 p.m., after taking three ecstasy pills, Tyler attacked his mother, Mary-Jo, with a claw hammer while she worked at her computer. His father, Blake, ran out upon hearing screams and asked "Why?" before Tyler fatally attacked him as well. Tyler then moved both bodies into the master bedroom and spent approximately three hours cleaning the scene and piling household items and furniture on top of the bodies.

The party

Tyler had begun inviting people to a party at his home at 12:15 p.m. that day, hours before the killings. He funded the gathering using his parents' credit cards, withdrawing cash that was captured on an ATM camera. Around 60 people reportedly attended the party that evening, and some attendees later said they noticed a smell associated with the bodies. During the party, Tyler told several people what he had done, including a close friend he confided in during a walk away from the gathering. That friend later found the bodies in the master bedroom but did not leave immediately, remaining at the party for about 45 minutes and taking a selfie with Tyler before eventually departing roughly four hours later and calling a local crime tip hotline to report the killings. Hadley was arrested the following morning.

Background and legal proceedings

Tyler had a history of skipping school, drug use, and prior legal trouble, including arson, vandalism, theft, and aggravated battery, and had recently entered an outpatient drug treatment program that had not succeeded. His parents had arranged for him to enter an inpatient treatment program before he turned 18, which was later reported as a motive for the killings.

Tyler pleaded no contest to two counts of first-degree murder. Because he was a minor, he could not face the death penalty. In 2014, he was initially sentenced to two consecutive terms of life without parole; that sentence was overturned on appeal because the lower court had not properly considered the required alternative sentencing review under Miller v. Alabama. In December 2018, Hadley was resentenced to life in prison with the appropriate judicial review mechanism in place. He is imprisoned at Liberty Correctional Institution. The family home was demolished in April 2015.

Start hereVIDEOThe House Party Killer | The Horrific Case of Tyler HadleyCoffeehouse Crime · YOUTUBE · 19 min

Key facts

Victims
Blake Hadley, Mary-Jo Hadley
Date
2011
Location
Port St. Lucie, Florida
Case status
solved

Case timeline

  1. 1993-12-16

    Tyler J. Hadley is born.

  2. 2010-06

    A $15,000 civil suit becomes pending after Tyler injured a child while driving his father's car, according to Wikipedia's account.

  3. 2011-07-16

    Blake and Mary-Jo Hadley are killed in their Port St. Lucie, Florida home by their son Tyler; a party is held at the home afterward and Tyler is arrested the next morning.

  4. 2014

    Tyler Hadley pleads no contest to two counts of first-degree murder and is initially sentenced to two consecutive terms of life without parole.

  5. 2014-04

    An appeal judge overturns the sentencing, citing failure to consider the required alternative sentence under Miller v. Alabama.

  6. 2015-04

    The Hadley family house is demolished.

  7. 2018-12

    Hadley is resentenced to life in prison with the proper judicial review mechanism in place.

Best coverage

Titles and descriptions are the creators’ own and may not reflect current legal status; see the dossier above for sourced case facts.

VIDEO

Coffeehouse Crime / 19 min

The House Party Killer | The Horrific Case of Tyler Hadley

People

  • Blake Hadley

    VICTIM

    Father, killed by his son on July 16, 2011.

  • Mary-Jo Hadley

    VICTIM

    Mother, killed by her son on July 16, 2011.

  • Tyler Hadley

    CONVICTED

    Pleaded no contest to two counts of first-degree murder; sentenced to life in prison, resentenced in December 2018.

Roles reflect public records and court outcomes at the time of writing — supporting citations are on file under Sources.

Archival records

  • TYLER Joseph Hadley

    mugshot

    TYLER Joseph Hadley

    Credit: Florida Department of Corrections · Public domain · Source

Places

Common questions

What happened to the victim?
On July 16, 2011, in Port St. Lucie, Florida, 17-year-old Tyler Hadley killed his parents, Blake and Mary-Jo Hadley, with a hammer and then hosted a house party while their bodies were hidden in the master bedroom. He was later convicted and sentenced to life in prison.
Where did the murders happen?
Port St. Lucie, Florida.
Who was convicted?
Tyler Hadley (Pleaded no contest to two counts of first-degree murder; sentenced to life in prison, resentenced in December 2018.).
What is the current status of the case?
Status: solved.

Sources

  1. ENCYCLOPEDICMurders of Blake and Mary-Jo HadleyWikipedia · 2026-07-18
  2. PRESSContemporaneous coverage — ABC NewsABC News · 2026-07-18
  3. PRESSContemporaneous coverage — The New York TimesThe New York Times · 2026-07-18

Record history

First published
JUL 18, 2026

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