Nima Momeni interrupted, chastised, and went toe-to-toe with a prosecutor in his murder trial for the killing of Cash App founder Bob Lee in San Francisco on Thursday.

For the first time since Nima Momeni was charged with murdering tech mogul Bob Lee, the accused killer told his side of the story on Wednesday. Momeni broke his silence in front of San Francisco jurors who will decide his guilt or innocence.

Defense attorneys for Nima Momeni — the man accused of fatally stabbing tech executive Bob Lee – called a medical expert to the witness stand Tuesday who testified that it is possible that their theory of self-defense could be true.

A government prosecutor spent the day picking apart inconsistencies in Momeni's account of the events leading up to Cash App founder Bob Lee's murder.

Nima Momeni struggles — or refuses — to provide much detail about the stabbing death of Cash App founder Bob Lee.

Nima Momeni, the man accused in the fatal stabbing of tech executive Bob Lee, testified for the first time in his defense at his murder trial Wednesday morning.

The man accused of killing Cash App founder Bob Lee claimed a “bad joke” about family and strip clubs caused the tech entrepreneur to fly into a rage and charge him with a knife – testifying that he was left no choice but to defend himself.