Bob Lee, the former chief technology officer of Square and creator of Cash App, passed away on April 4 following a stabbing in San Francisco. The news was first shared by Bill Barhydt, CEO of crypto wallet company Abra, who tweeted that Lee “was killed in SF early today.” Later, Jack Dorsey confirmed Lee’s death on the decentralized social media platform, Nostr.

According to the San Francisco Police Department, officers responded to a report of a stabbing at around 2:35 am local time on April 4. They found a 43-year-old male victim suffering from stab wounds, who was transported to a local hospital but later succumbed to his injuries.

Lee’s death is being actively investigated as a homicide, and no arrests have been made yet. The San Francisco Police Department urges those with information to contact them, which can be done anonymously.

Lee’s passing has sent shockwaves through the tech community, with many expressing their condolences on social media. Lee’s contributions to the fintech and cryptocurrency industries will be remembered, and his legacy will undoubtedly continue to inspire future innovators.