Warrant Officer Xoli Mbele said the 28-year-old handed himself to police on Tuesday around 4pm.
Sibusiso Nala, 30, was stabbed once in the upper body at the Calcium Building, on the corner of Goud and Jeppe streets, at noon on Monday.
“The deceased and a suspect were friends. They had an argument concerning a phone that was missing. They started to fight and the suspect took out a knife and stabbed his friend,” said Mbele.
Nala died on the scene and his friend fled to Alexandra. The man was expected to appear in the Johannesburg Magistrate’s Court on Thursday.