13 things about Towson, Maryland’s Luigi Mangione

Luigi Nicholas Zannino Mangione is an Italian-American data engineer from Towson, Baltimore County, Maryland, United States. He is accused of killing Brian Robert Thomson in Midtown Manhattan, Manhattan, New York City, New York, USA on December 4, 2024.

BIOGRAPHY

Mangione is the only son of Louis Mangione is married to Kathleen “Kathy” Zannino Mangione. The couple has two daughters namely MariaSanta Mangione and Lucia Mangione.

Louis is one of the 10 children of Nicholas Bernard Mangione Sr. and Mary Cuba Mangione. Kathy is one of the eight children of Joseph Nickolas Zannino Jr. and Maria Santa Zannino.

On May 6, 2025, Luigi turned 27. Here are 13 more things about him:

1. He is registered to vote at his parents’ address in Cockeysville, Baltimore County, Maryland and is not affiliated with a political party.
2. He and his sisters MariaSanta and Lucia were born at Greater Baltimore Medical Center in Towson.
3. He was 24 years younger than Thompson and is 30 years younger than his uncle Vincent de Paul, who is an actor.
4. In 2014, he co-founded AppRoar Studios in Baltimore.
5. In 2016, he graduated from Gilman School in Baltimore, Maryland, entered the University of Pennsylvania in Philadelphia, Pennsylvania, USA and founded UPenn Game Research And Development Environment (UPGRADE), the first video game development club in Pennsylvania.
6. In 2017, he joined the University of Pennsylvania’s Phi Kappa Psi fraternity.
7. In 2018, he became a University of Pennsylvania teaching assistant.
8. In 2019, he became a teaching assistant at Stanford University in Palo Alto, Santa Clara County, California, USA.
9. He filmed a sex video at the bathroom of his parents’ house and sent it to a man he met on Grindr in 2020.
10. In 2020, he became an employee of TrueCar, a car-buying website based in Santa Monica, Los Angeles County, California.
11. Between May 2022 and February 2023, he added five books involving chronic back pain to his virtual bookshelf on GoodReads including “Crooked: Outwitting the Back Pain Industry and Getting on the Road to Recovery” and “Why We Get Sick: The Hidden Epidemic at the Root of Most Chronic Disease and How to Fight It.”
12. In 2023, he underwent surgery to treat his back pain caused by a misaligned vertebrae pinching his spinal cord.
13. In 2024, he was arrested after allegedly killing Thompson.

TIMELINE

Luigi is 5’11” tall. His registered weight is 170 pounds.

2010s

• In August 2012, he entered Gilman School.
• On August 24, 2013, his maternal grandmother died in Maryland.

2014

• From May 2014 to September 2014, he was an activities volunteer at Lorien Health Services, which his paternal grandfather established in Ellicott City.
• In November 2014, he became the lead programmer at AppRoar Studios.

2015

• In June 2015, he left his position as the lead programmer at AppRoar Studios.

2016

• In May 2016, he graduated from Gilman School at the top of his class and joined Firaxis Games in Sparks, Baltimore County as a user interface (UI) programming intern.
• From June 2016 to August 2016, he was a robotics researcher at the Johns Hopkins Whiting School of Engineering in Baltimore.
• In August 2016, he entered the University of Pennsylvania.
• In September 2016, he became the UPGRADE president and the project lead.

2017

• In January 2017, he became a member of the Phi Kappa Psi fraternity at the University of Pennsylvania.
• On March 6, 2017, his maternal grandfather died in Baltimore.
• In August 2017, he completed his internship at Firaxis Games.

2018

• In January 2018, he joined the University of Pennsylvania staff as a teaching assistant and the head of recitation committee. He taught runtime analysis, data structures, algorithms and graph theory using Java and instructed more than 20 students in weekly recitations.

2019

• On January 9, 2019, his cousin Antonino “Nino” D. Mangione became the Republican Baltimore County delegate.
• In May 2019, his employment as a University of Pennsylvania teaching assistant and the head of recitation committee ended.
• From June 2019 to August 2019, he was a head counselor and an AI teaching assistant at Stanford University.
• In August 2019, he started pursuing his master’s degree in the University of Pennsylvania while still pursuing his bachelor’s degree.

2020

• In May 2020, he left his position as the UPGRADE president and the project lead and graduated from the University of Pennsylvania with a bachelor’s degree in engineering and computer and information science with a concentration in artificial intelligence (AI) and a minor in mathematics and master’s degree in engineering and computer and information science.
• In November 2020, he joined TrueCar as a data engineer.

2021

• In April 2021, Thompson became the chief executive officer of UnitedHealthcare (UHC), an insurance and managed care company based in Minnetonka, Minnesota, USA.

2022

• From January 2022 to June 2022, he lived at Surfbreak, a co-living space near Ala Moana Beach Park in Honolulu, Hawaii.

2023

• In February 2023, he left TrueCar.
• In July 2023, he wrote on Reddit that since childhood, he had suffered from back pains related to spondylolisthesis, which was exacerbated by a surfing incident. He said his “back and hips locked up after the accident”, “intermittent numbness has become constant” and he was “terrified of the implications”.
• On November 12, 2023, he was arrested by the Hawaii Department of Land and Natural Resources for trespassing in a closed area of Nuuanu Pali Lookout on Oahu, Hawaii. He pleaded no contest to the offense and paid a court-ordered $100 fine.

2024

• In March 2024, he met soccer player Christian Sacchini at a pub in Bangkok, Thailand.
• In July 2024, he returned to the U.S.
• On August 15, 2024, he wrote a notebook that “the details are finally coming together” and “the target is insurance” because “it checks every box” and on October 22, 2024, he wrote on the same notebook, “1.5 months. This investor conference is a true windfall.”
• On November 24, 2024, he used a fake New Jersey, USA driver’s license with the name Mark Rosario to check into a hostel in Manhattan.
• At around 6:40 a.m. on December 4, 2024, he allegedly fatally shot Thompson outside a hotel in Manhattan.
• On the morning of December 9, 2024, he was arrested while eating at a McDonald’s in Altoona, Pennsylvania after a worker of the restaurant recognized him. In the evening, he was arraigned in a court in Hollidaysburg, Pennsylvania where he was ordered held without bail at the State Correctional Institution in Huntingdon, Pennsylvania.
• On December 17, 2024, a New York State Supreme Court indictment charged him with first-degree murder, second-degree criminal possession of a forged instrument, fourth-degree criminal possession of a weapon and two counts of second-degree murder, two counts of second-degree criminal possession of a weapon and four counts of third-degree criminal possession of a weapon.
• On December 19, 2024, he was flown from Pennsylvania to New York, charged with a firearms offense, murder through use of a firearm and two counts of stalking and booked into the Metropolitan Detention Center in Brooklyn, New York City and he appeared before U.S. Magistrate Judge Katharine H. Parker in federal court in Manhattan.
• On December 23, 2024, he pleaded not guilty in a New York courtroom to 11 state charges in the murder of Thompson.
• On December 29, 2024, he hired Harvey Weinstein’s prison consultant Craig Rothfeld.

2025

• On January 6, 2025, “TMZ Investigates: Luigi Mangione: The Mind of a Killer” aired on Fox.
• On February 14, 2025, he thanked people who wrote him to share their stories and express their support while he was in the Metropolitan Detention Center in Brooklyn in a statement posted to a website set up by his defense.
• On March 6, 2025, sex tape broker Kevin Blatt told The US Sun about the sex video he sent to another man he met in 2020 and on March 10, 2025, his lawyer Karen Agnifilo told Daily Mail that the video was fake.
• On April 1, 2025, U.S. attorney general Pam Bondi said the federal government would seek death penalty against him.
• On April 17, 2025, a grand jury in Manhattan indicted him on 11 counts including murder in the first degree in furtherance of an act of terrorism, murder in the second degree as a crime of terrorism, first-degree murder, two counts of second-degree murder and other weapons and forgery charges and on April 25, 2025, he pleaded not guilty to all charges.
• On September 16, 2025, he appeared in Manhattan Criminal Court before Judge Gregory Carro, who dismissed two terrorism charges filed against him because they were legally insufficient.
• On December 5, 2025, he will appear in federal court.