Cash App founder Bob Lee, 43, stabbed to death in Rincon Hill neighborhood, San Francisco

Cash App founder Bob Lee, 43, stabbed to death in the US.

Police said officers responded at about 2:35 a.m. to a report of a stabbing in the 300 block of Main Street in the city’s Rincon Hill neighborhood and arrived to find the victim, who was taken to a hospital and succumbed to his injuries there.

The city’s medical examiner’s office had not yet identified the victim as of Tuesday evening, but friends of Lee told KPIX he was the victim.

The 43-year-old Lee was the Chief Product Officer of San Francisco-based cryptocurrency startup MobileCoin.

On Twitter Tuesday evening, a flood of messages were posted eulogizing Lee, many including his @crazybob Twitter handle.

No arrest has been made in the case and San Francisco police have not released any suspect details.

Anyone with information about the fatal stabbing was asked to call the Police Department’s tip line.

A man who was fatally stabbed early Tuesday near downtown San Francisco was tech executive Bob Lee, the founder of Cash App and former chief technology officer of Square, sources told NBC Bay Area.

The San Francisco Police Department said officers responded to a report of a stabbing at around 2:35 a.m. Tuesday. They found a 43-year-old man with apparent stab wounds, police said.

Police did not name the man, but sources identified Lee, who was serving as the chief product officer of MobileCoin, as the victim to NBC Bay Area.

“Bob was a force of nature. Helped to birth Android and CashApp into our world,” Joshua Goldbard, the CEO of MobileCoin told ABC affiliate KGO of San Francisco. “Moby was his dream: a privacy protecting wallet for the 21st Century. I will miss him every day.”

MobileCoin did not immediately respond to a request for a statement early Wednesday.

Police said Tuesday that the incident was being investigated by the department’s homicide detail.

Tributes have poured in on social media for Lee, with former MMA fighter Jake Shields remembering the tech executive as a “loyal friend.”

In an earlier tweet, Shields had said he had “just found out my good friend was killed last night” while walking in a “‘good’ part of the city.”