• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
criminal trial

Opening arguments begin in trial of tech consultant charged in death of Cash App’s Bob Lee

By
Janie Har
Janie Har
and
The Associated Press
The Associated Press
Down Arrow Button Icon
By
Janie Har
Janie Har
and
The Associated Press
The Associated Press
Down Arrow Button Icon
October 14, 2024, 5:23 PM ET
Nima Momeni, the man charged in the fatal stabbing of Cash App founder Bob Lee, makes his way into the courtroom for his arraignment in San Francisco, May 2, 2023.
Nima Momeni, the man charged in the fatal stabbing of Cash App founder Bob Lee, makes his way into the courtroom for his arraignment in San Francisco, May 2, 2023. Gabrielle Lurie—San Francisco Chronicle via AP

San Francisco prosecutors made opening statements Monday in the murder trial of a tech consultant charged in the stabbing death of Cash App founder Bob Lee, previewing a timeline of events before the death and attempts afterward by the defendant to hide what he did.

Recommended Video

Lee’s death at age 43 — after staggering on a deserted downtown San Francisco street seeking help — stunned the tech community, and fellow executives and engineers penned tributes to his generosity and brilliance. Lee was chief product officer of cryptocurrency platform MobileCoin when he died. He was a father to two children.

Prosecutors say Nima Momeni, 40, planned the April 4 attack after a dispute over his younger sister, Khazar, with whom Lee was friends. They say Momeni took a knife from a unique set in his sister’s condo, drove Lee to a secluded area and stabbed him three times, then fled.

“Stabbed through his heart and left to die,” said Omid Talai, assistant district attorney, “our victim was stabbed repeatedly, once in his chest, once in his hip and literally one puncturing his heart. Robert Lee. Known as Bob.”

Defense lawyers disagree, and they say that Lee, high on drugs, attacked Momeni. They plan to make their opening statement after lunch.

“Our theory is that Bob had the knife, and that Nima acted in self defense,” attorney Saam Zangeneh told The Associated Press last week.

He said his client is eager to tell his side of the story, but they haven’t decided whether Momeni will testify in his defense. Momeni, who lives in nearby Emeryville, California, has been in custody since his arrest days after Lee died at a San Francisco hospital.

On Monday, Momeni was seated with his lawyers, wearing a dark suit.

His mother, who has been a steadfast presence at hearings, was in court alone Monday morning. On the other side of the courtroom sat members of Lee’s family, including his ex-wife, father and brother.

Talai, the assistant district attorney, said jurors will hear from a friend of Lee’s, who spent time with him and Momeni’s sister the day before Lee was stabbed.

The friend will testify that Momeni angrily grilled Lee on the phone that night over his sister, drugs and “girls getting naked,” acting like “an overprotective, wannabe tough guy” while Lee was being mellow and happy, Talai said.

Surveillance video of Lee’s final night shows him entering the posh Millennium Tower downtown, where Momeni’s sister lives with her husband, a prominent San Francisco plastic surgeon.

Talai said jurors will see video of Lee and Momeni leaving the building after 2 a.m. and driving off together in Momeni’s car. Other video will show the two men getting out of the car in a isolated spot by the Bay Bridge, and then Momeni stabbing Lee three times, tossing the knife from his sister’s kitchen set and quickly driving away.

Talai said the prosecution will share text messages in which Momeni, the following morning, tells his sister he did not know what happened to Lee that night.

The lawyer said video recorded by a San Francisco police detective trailing Momeni before his arrest shows him reenacting the three stabbing motions outside his previous lawyer’s office, but no reenactment of a struggle over the knife that his attorneys say Lee wielded first.

Police recovered a knife with a 4-inch (10-centimeter) blade in the secluded area where Lee was stabbed. Prosecutors said tests showed Momeni’s DNA on the weapon’s handle and Lee’s DNA on the bloody blade. But the defense has said police should have tested the handle for fingerprints, namely Lee’s.

Lee was found around 2:30 a.m. in the Rincon Hill neighborhood of San Francisco, which has tech offices and condominiums but little activity in the early morning hours.

He called 911 as he staggered, bleeding out and begging dispatch for help, Talai said.

Family members for Momeni and Lee declined comment Monday.

Momeni, who has pleaded not guilty, faces 26 years to life in prison if convicted.

San Francisco Superior Court Judge Alexandra Gordon has told jurors the trial could last until mid-December.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Authors
By Janie Har
See full bioRight Arrow Button Icon
By The Associated Press
See full bioRight Arrow Button Icon

Latest in

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in

Elon Musk, wearing all black and in front of a blue background, presses his hands together.
Big TechDavos
Elon Musk makes the case for why his $2.2 trillion tech empire is the only way to save humanity as the only intelligent life in the universe
By Sasha RogelbergJanuary 22, 2026
2 hours ago
CryptoCryptocurrency
TradFi firms are increasingly warming to cryptocurrencies, says Bybit CEO Ben Zhou
By Angelica AngJanuary 22, 2026
2 hours ago
zelensky
PoliticsUkraine
‘Europe looks lost’: Zelensky says Trump’s actions in Venezuela and Iran should embarrass the ‘Groundhog Day’ movie in Davos
By Kamila Hrabchuk, Kostya Manenkov and The Associated PressJanuary 22, 2026
2 hours ago
dimon
BankingWhite House
Trump sues Jamie Dimon, JPMorgan for $5 billion over claims that his politics got him debanked in 2021
By Ken Sweet and The Associated PressJanuary 22, 2026
2 hours ago
macron
EuropeFrance
Macron says Europe forced Trump to back down: ‘Europe can make itself be respected, and that’s a very good thing’
By Lorne Cook, Sam McNeil and The Associated PressJanuary 22, 2026
3 hours ago
reagan
EconomyWealth
How the middle class was hollowed out from 1979 to 2022, according to new federal data
By Nick LichtenbergJanuary 22, 2026
3 hours ago

Most Popular

placeholder alt text
Economy
Jamie Dimon says he’d have no issue paying higher taxes if it actually went to people who need it. Right now it just goes to the Washington ‘swamp’
By Eleanor PringleJanuary 21, 2026
1 day ago
placeholder alt text
AI
Elon Musk says that in 10 to 20 years, work will be optional and money will be irrelevant thanks to AI and robotics
By Sasha RogelbergJanuary 19, 2026
3 days ago
placeholder alt text
Success
Nvidia CEO Jensen Huang says ‘a lot’ of six-figure jobs in plumbing and construction are about to be unlocked because someone needs to build all these new AI centers
By Preston ForeJanuary 21, 2026
1 day ago
placeholder alt text
Economy
'Some form of crisis is almost inevitable': The $38 trillion national debt will soon be growing faster than the U.S. economy itself, watchdog warns
By Nick LichtenbergJanuary 22, 2026
7 hours ago
placeholder alt text
Politics
Jamie Dimon tells Davos: ‘You didn’t do a particularly good job making the world a better place’
By Eleanor PringleJanuary 21, 2026
1 day ago
placeholder alt text
Economy
Scott Bessent insists he’s ‘not concerned at all’ about investors selling America—despite the fact it’s unraveled tariffs before
By Eleanor PringleJanuary 21, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.