Bob Lee’s ex-wife blasted Khazar Elyassnia, the socialite sister of the tech mogul’s accused killer, in the courtroom hallway after she testified in her brother’s defense for four days.

The murder trial of Cash App founder Bob Lee continued in San Francisco Thursday as the glamorous, hard-partying sister of his accused killer made her long-anticipated appearance on the witness stand.

A tech consultant charged in Cash App founder Bob Lee’s stabbing death has testified that the famous entrepreneur suddenly ...