Skip to content
Casepin

Solved case · 2011

Murders of Blake and Mary-Jo Hadley

Also known as Tyler Hadley case · Hammer Boy murders

SOLVEDCONVICTED
Updated
Updated Jul 18, 2026
TYLER Joseph HadleyTYLER Joseph HadleyCredit: Florida Department of CorrectionsPublic domainSource

The short answer

Murders of Blake and Mary-Jo Hadley in brief

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.

Start hereThe House Party Killer | The Horrific Case of Tyler Hadley

Key facts

Year
2011
Place
Port St. Lucie, Florida
Status
SOLVEDSolved
Victims
Blake Hadley and Mary-Jo Hadley
Outcome
Convicted: Tyler Hadley

The coverage index

Where to watch & listen

1 piece from 1 creator: ranked, with duplicates removed and short clips set aside.

Start here

The House Party Killer | The Horrific Case of Tyler Hadley

Video · YouTube · 19 min · 2021

Coffeehouse Crime's 19-minute overview: the quickest complete way into the case.

Watch on YouTube

Titles and descriptions are the creators’ own and may not reflect current legal status. The sourced facts are in the file below. Players load only when you press play. Suggest coverage we’re missing.

The case file

What happened

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.

7 dated entries · 1993–2018

Timeline

  1. Tyler J. Hadley is born.

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

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

  6. The Hadley family house is demolished.

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

3 named in this file

People

Victims first. Every legal label is set from public records and court outcomes, not from the prose.

  • Blake Hadley

    VICTIM

    Father, killed by his son on July 16, 2011.[3]

  • Mary-Jo Hadley

    VICTIM

    Mother, killed by her son on July 16, 2011.[3]

  • Tyler Hadley

    CONVICTED

    Pleaded no contest to two counts of first-degree murder; sentenced to life in prison, resentenced in December 2018.[3]

From the record

Quick answers

Who was convicted?
Tyler Hadley: Pleaded no contest to two counts of first-degree murder; sentenced to life in prison, resentenced in December 2018.

3 cited

Sources

Coverage is not a source: every fact in this file rests on the records below.

  • 2 Press
  • 1 Encyclopedic
  1. Contemporaneous coverage — ABC News

    PressABC NewsAccessed Jul 18, 2026

  2. Contemporaneous coverage — The New York Times

    PressThe New York TimesAccessed Jul 18, 2026

  3. Murders of Blake and Mary-Jo Hadley

    EncyclopedicWikipediaAccessed Jul 18, 2026

Trust

Record history

First published
Jul 18, 2026
Corrections
None

Are you family of someone named in this file? Corrections and removal requests from victims’ families are prioritized.