Nima Momeni’s lawyer asserted in his opening statement that the technology consultant accused of stabbing Cash App founder Bob Lee had no motive to kill him and was actually defensive during a multi-day drug raid, claiming he needed to defend himself from Mr. Lee on Monday.

Prosecutors claim that Momeni, 40, orchestrated the April 4, 2023 attack following an altercation over his sister, Hazard, who was acquainted with Lee. Allegedly, Momeni retrieved a knife from a special kit in his sister’s apartment, pursued Lee to a secluded area, stabbed him three times, and fled.

“He was stabbed in the heart and left for dead,” Assistant District Attorney Omid Tarai stated. “The victim sustained multiple stab wounds, including one to the chest, one to the lower back, and crucially one to the heart.”

Lee’s untimely death at 43, after seeking aid on a vacant street in downtown San Francisco, deeply impacted the tech sector, with colleagues remembering the charismatic entrepreneur’s benevolence and skill. At the time of his demise, Lee held the position of chief product officer at the cryptocurrency platform MobileCoin and was a father of two.

Judge Alexandra Gordon informed the jury that the highly anticipated trial, commencing Monday at the San Francisco Superior Court, is anticipated to span two months. Momeni, a resident near Emeryville, California, has been detained since his apprehension shortly after Lee’s passing in a San Francisco medical facility.

Momeni has pleaded not guilty, and if convicted, he faces a potential sentence of 26 years to life imprisonment.

Attorney Saam Zangeneh told the jury that Mr. Momeni harbored no animosity towards Mr. Lee and that the circumstances compelled him to safeguard himself after brandishing a knife while under the influence of drugs and sleep-deprived. Zangeneh indicated that the defense would substantiate his claims that Momeni had indulged in an extended narcotics binge.

“We believe that once the evidence is presented and any ambiguities resolved, the only justifiable verdict in this case is one of innocence,” Zangeneh declared. “A life has been lost. No one condones that, but the right to self-defense must be recognized.”

Throughout prior court appearances, Momeni, dressed in an orange prison garment, attended with his lawyer donned in a formal ensemble. His mother, a constant presence at hearings, was also in attendance.

Seated on the opposite side of the courtroom were Mr. Lee’s relatives, including his ex-wife, father, and brother. As a recording of Lee’s distress call played in court, Lee’s brother comforted their father. In the call, Lee implored for assistance while unable to provide his location or identity, conveying that he had been attacked.

Assistant District Attorney Tarai mentioned that the jury would hear testimony from a friend present with Lee and Momeni’s sister a day before the altercation. Tarai alleged that Momeni verbally attacked Lee over the phone that evening, discussing his sister, drugs, and inappropriate subjects, with Lee exhibiting composure. Tarai insinuated that the friend would portray Momeni as a possessive individual striving to display toughness.

Mr. Zangeneh dismissed the credibility of the friend as a witness and contended that Momeni and Lee had exchanged amicable emails on that evening. Zangeneh suggested that Lee probably invited Momeni to the club.

CCTV footage from Lee’s final night depicted his entry into the opulent Millennium Tower where Momeni’s sister and her spouse, a prominent San Francisco plastic surgeon, resided. The footage captured Lee and Momeni departing the premises around 2 a.m. and driving off together in Momeni’s vehicle.

Tarai noted another video depicting two individuals exiting a car at a remote location along the Bay Bridge, with Momeni stabbing Lee thrice and discarding a knife from his sister’s kitchen set moments later, followed by his escape. Tarai revealed intentions of unveiling text messages sent by Momeni to his sister, alleging a harassment claim the subsequent morning when Momeni expressed uncertainty regarding Lee’s fate but accused Lee of assaulting Hazard.

The defense cited a video capturing Momeni being surveilled by San Francisco police detectives pre-arrest, purportedly reenacting the stabbing outside his former law firm thrice. However, the defense noted a lack of reenactment concerning the initial knife confrontation as claimed by Momeni’s attorney.

A knife with a 10cm blade was recovered at the remote location where Lee was assaulted. Prosecutors asserted that forensic tests exhibited Momeni’s DNA on the weapon handle and Lee’s DNA on the blood-stained blade.

Zangeneh indicated on Monday that the police should have screened the steering wheel for Lee’s fingerprints. He derided the notion that Momeni employed a trivial kitchen knife to perpetrate the assault, emphasizing Momeni’s perceived unawareness of Lee’s dire condition.

He expressed Momeni’s desire to elucidate his perspective yet remained undecided on Momeni’s potential testimony for the defense.

Momeni and Lee’s families opted not to comment on Monday.