He killed his ex-partner and injured his four-year-old daughter after a domestic dispute in Reitz, the Free State police said Thursday.
He had recently separated from Nthabiseng Mokoena, 35, and stabbed her multiple times during an argument on Tuesday, said Captain Zweli Mohobeleli.
He also stabbed his daughter in the arm. She received stitches at hospital and was later discharged into the care of her mother's family.
READ: Port Elizabeth mother stabbed to death in front of her infant child
Mohobeleli said the man, 33, was traced to a hill near Petsana where he was arrested.
"He was found in possession of a rope which we suspect he intended to hang himself with."
He was expected to appear in the Reitz Magistrate's Court on Friday, to face charges of murder and attempted murder.
Acting Bethlehem Cluster Commander Brigadier Nkaise Molefe extended his condolences to the Mokoena family.
"I would also like to applaud members of the community for making their business to call the police when they witnessed the stabbing."
The police have pleaded for people who have protection orders against their abusers to report any contravention immediately.
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