According to reports, Bob Lee, the 43-year-old creator of Cash App, was fatally stabbed in San Francisco, California.

According to San Francisco authorities, the tech tycoon, who formerly held the position of chief technology officer at Square, was attacked at 2:35 a.m. on Tuesday, April 5 in the city’s Rincon Hill neighborhood.

When police arrived, they discovered a 43-year-old man who had sustained numerous stab wounds. Lee was later identified as the victim by CBS News.

According to authorities, Lee was taken to a nearby hospital before he passed away from his wounds.

As of early Wednesday, no one had been arrested, the source says.

According to his LinkedIn profile, Lee had been the chief product officer of the San Francisco-based cryptocurrency company MobileCoin since November 2021.

According to his biography on the official website of MobileCoin, Lee also worked at Google during his successful tech career, where he oversaw the team that debuted the most popular operating system in the world and led the development of its core library.