Tech Mogul Charged With Murder After Argument Over Sister

Nima Momeni, a Bay Area tech entrepreneur, was charged with murdering Bob Lee, the founder of Cash App.
Lee was found stabbed to death after socializing with Momeni's sister and friends.
Momeni confronted Lee about his sister's drug use and their relationship before Lee was killed.
Momeni's arraignment has been delayed twice as his attorney reviews evidence, but he intends to plead not guilty.
Prosecutors argue the killing was premeditated, but Momeni's attorney says video evidence does not clearly show what happened.