Silicon Valley executive Bob Lee, who was stabbed to death in San Francisco last month, had cocaine, ketamine and alcohol in his body when he died, according to an autopsy report released by the city medical examiner’s office.

The report confirms the initial findings by local police that Lee, 43, died April 4 of multiple stab wounds and classifies the death as a homicide.

Nima Momeni, the 38-year-old owner of a small IT firm, is charged with murdering Lee with a kitchen knife on a downtown street late at night.