Police have arrested a self-described tech entrepreneur in connection with the San Francisco stabbing of Cash app founder Bob Lee.
The suspect is 38-year-old Nima Momeni of Emeryville, California. Mr Lee and Mr Momeni knew each other, police said.
According to Mr Momeni’s LinkedIn profile, he is a technology consultant and startup owner.
Police found Mr Lee, 43, unconscious with stab wounds near downtown San Francisco on April 4.
He was critically injured and died at the hospital.
At a news conference on Thursday, San Francisco Police Chief William Scott announced Mr Momeni’s arrest and said the suspect knew Mr Lee.
Chief Scott said Mr Momeni has been charged with murder and is now being held in the San Francisco County Jail.
He did not elaborate on how Mr Lee and the suspect knew each other.
Prosecutors are seeking bail for Mr Momeni. The trial is scheduled to take place on Friday.
Chief Scott said the arrest was “not case closed” and an investigation into Mr Lee’s death was ongoing.
Citing police sources, the report said Mr Lee and the suspect were in a vehicle together and had an argument before Mr Lee was stabbed.
Police officers first responded to reports of a stabbing at around 02:35 local time (09:35 GMT) on April 4.
The San Francisco Standard has seen CCTV footage which shows Mr Lee walking down a deserted alley, looking for help.
He can be seen stumbling towards a parked car, raising his shirt to reveal his injury, but the vehicle drives off before the tech entrepreneur falls to the ground.
Police found Mr Lee unconscious with two stab wounds to his chest in the Rincon Hill area and began providing first aid before taking him to hospital.
He was the Chief Product Officer of cryptocurrency company MobileCoin.
Mr Lee is also credited with founding Cash App, a smartphone-based platform that allows person-to-person money transfers. According to Forbes, the app is popular in the US and is worth $40bn (£32bn).
His death drew many tributes from figures in the US tech industry.
It also sparked criticism of officials in San Francisco for their response to the city’s violent crime rate.
During Thursday’s news conference, Brooke Jenkins, San Francisco’s district attorney, said her office and the police had “worked tirelessly” to solve Mr. Lee’s case and others.
He also accused those who linked Mr Lee’s killing to overall security in San Francisco of making “irresponsible and irresponsible” statements.
Ms. Jenkins specifically mentioned Elon Musk by name, Mr Lee tweeted after the stabbing “Violent crime in San Francisco is brutal and even when the attackers are caught, they are released immediately.”
“The false circumstances surrounding Mr. Lee’s death helped mislead the world about San Francisco,” he tweeted.
San Francisco’s homicide rate is fairly consistent, according to police statistics. There were 56 murders last year and 56 the year before that. The city is on track for a similar homicide rate this year.
According to the San Francisco Chronicle, the city has an unusually high rate of property crimes, such as burglary and theft, although average rates of violent crime are low compared to other U.S. cities.