The San Francisco Police Department has arrested a tech executive named Nima Momeni in connection with the April 4 stabbing of Cash App creator Bob Lee.

In an April 13 press conference, the SFPD announced Momeni was in custody following the issuing of search and arrest warrants executed in San Francisco and Emeryville, a city across the bay. Police chief Bill Scott said “the evidence shows that [Momeni and Lee] knew each other” but did not comment on the motive of the stabbing, adding the case was not yet closed.

SFPD Chief Bill Scott addresses reporters on April 13. Source: Facebook

The death of Lee, known in the tech world for creating the mobile payment service Cash App, sent shockwaves among many in the crypto space. The reports that Lee knew Momeni suggested the attack was not random, despite some media outlets pointing to San Francisco as a “crime-ridden” city.

“We knew nothing about the facts of this case immediately after it happened, none of us did,” said San Francisco district attorney Brooke Jenkins. “My urging, through Twitter, through the news was to really press upon not just the media but the residents of San Francisco and everyone else not to draw conclusions about what happened in this case.”

Related: Bitcoin-friendly Cash App integrates TaxBit amid tax-filing season

It’s unclear at the time of publication what charges, if any, Momeni could fight in connection to Lee’s death, but San Francisco Mayor London Breed referred to the case as a murder.

Magazine: US enforcement agencies are turning up the heat on crypto-related crime

This is a developing story, and further information will be added as it becomes available.