Bob Lee, 43, the creator of Cash App, was killed in San Francisco

Bob Lee, the creator of Cash App and chief product officer of MobileCoin, was fatally stabbed in San Francisco at the age of 43.

The incident occurred on Main Street at 2:35 a.m. on Tuesday, and Lee was pronounced dead at the hospital.

MobileCoin confirmed Lee's death.

Lee was described as being "made for the new world" and had a significant impact in the tech industry, including his contributions to Google's Android and his role as the first CTO of Square, where he created Cash App.

Prominent venture capitalist Ron Conway expressed deep condolences and called Lee's loss an immense tragedy.

The police did not provide details about the circumstances of the stabbing, citing an open and active investigation.

Lee had joined MobileCoin as an early stage investor and advisor, and later became chief product officer, helping to launch the Moby app.

MobileCoin CEO Josh Goldbard mourned Lee's passing and praised his contributions.

Lee's death has left a void in the tech community, with many remembering him fondly for his innovation, intelligence, and spirit.

The investigation into Lee's death is ongoing, and further details will be released when available.