Bob Lee, the founder of Cash App who was killed in San Francisco in April, had been taking drugs for a long time and attending underground parties around the world. Lee's autopsy report showed that he had a variety of drugs in his system, including alcohol, cocaine and ketamine. Court records described that Bob Lee was with a group of friends in the last few hours before his death, including Khazar Momeni, the sister of the suspect Nima Momeni. Prosecutors said the attack was "planned and deliberate" and Lee's friends claimed that Lee had an affair with Momeni's sister.

It was previously reported that Bob Lee died of a stabbing in San Francisco in the early hours of Tuesday, April 4, local time. (The Wall Street Journal)