William Lyons turned himself in at San Francisco County Jail around 8 a.m. Monday and was booked on suspicion of assault likely to produce great bodily injury, according to the San Francisco Police Department.
The arrest stems from a Feb. 8 incident in which two victims reported being attacked in the early morning hours after running into a group of men, police said.
The victims told investigators they were standing in front of a business on the 3100 block of Fillmore Street when they were approached by several unknown men. After a brief verbal altercation, the victims walked away, authorities said.
Police said the group later followed the victims to the 2000 block of Union Street, where the confrontation turned physical.
“Both of the victims sustained extensive injuries and were hospitalized as a result,” the department said in a statement.
Investigators initially released images and sought the public’s help identifying people of interest in the case. With assistance from the public, police said they were able to identify two men.
Authorities later determined that one of those men was no longer considered a person of interest, while developing probable cause to seek an arrest warrant for Lyons.
Lyons surrendered without incident, police said. Information about his bail and first court appearance was not immediately available.
The case remains under investigation. Police are asking anyone with information to contact the SFPD tip line at 415-575-4444 or send a text to TIP411, beginning the message with “SFPD.” Callers may remain anonymous.
Authorities have not released additional details about the victims or a possible motive.