Incident Summary:

03/12/2018: An assailant at a sleepover stabbed three people in BallenIsles neighborhood, Palm Beach Gardens, Florida, United States. At least one person was killed and two other people were injured in the assault. Corey Johnson claimed responsibility and stated that he carried out the attack because the victims made fun of how he practiced his Muslim faith. Sources also noted that Johnson allegedly contacted members of the Islamic State of Iraq and the Levant (ISIL) and was interested in joining the group.



United States

North America

region/u.s. state:


Palm Beach Gardens

Location Details:
The incident occurred in the Ballenisles neighborhood.

Attack Information
Type of Attack (more) Armed Assault
Successful Attack? (more) Yes
Target Information (more)
Target Type: Private Citizens & Property
Name of Entity Not Applicable
Specific Description Civilians: Jovanni Brand, Elaine Simon, Dane Bancroft
Nationality of Target United States
Additional Information
Hostages No
Ransom No
Property Damage No
Weapon Information
Type Sub-type
Melee Knife or Other Sharp Object
Weapon Details
A knife was used in the attack.
Additional Information
Suicide Attack?No
Part of Multiple Incident?No
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Doubt Terrorism Proper (more) No
Perpetrator Group Information
Group Name Claimed Responsibility
Jihadi-inspired extremists Yes (Confirmed: Unknown; Mode: Personal claim)
Perpetrator Statistics
Number of Perpetrators 1
Number of Captured Perpetrators 1
Casualty Information
Total Number of Casualties 1 Fatalities / 2 Injured
Total Number of Fatalities 1
Number of U.S. Fatalities 1
Number of Perpetrator Fatalities 0
Total Number of Injured 2
Number of U.S. Injured 2
Number of Perpetrators Injured 0
"Police: Florida teen who stabbed friend to death was known to FBI," CNN, March 15, 2018.