A 29-year-old man accused of killing Anene Booysen's biological father has been arrested in Bredasdorp, Western Cape police said on Friday.
The man was taken into custody on Thursday, said Lt-Col Maree Louw.
Booysen's father, Klaasie Speelman, was apparently stabbed to death on Tuesday night at his shack near Bredasdorp dumping site.
Louw said the man, also a resident in the area, allegedly asked Speelman for money, and he gave him R10.
"The man was [allegedly] not satisfied with the money and stabbed him to death when he could not give him more."
Speelman's girlfriend was hiding during the incident and reported it to police the following day.
The man would appear in the Bredasdorp Magistrate's Court on Monday.
Booysen was raped and disembowelled, and died in Tygerberg Hospital, Cape Town last year.
Her killer Johannes Kana was given two life sentences for crimes against the teenager.
His attempt to apply for leave to appeal against his conviction was denied by the Western Cape High Court.
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