Police spokesperson Captain FC van Wyk said the bodies were found at a Victoria Street flat on Friday evening.
“A post-mortem will be conducted to determine the cause of death. Detectives are following up on all leads to solve the case,” Van Wyk said.
A suspect has yet to be arrested.
Western Cape Gangwatch identified the young woman as Jesse Hess, a youth leader at a Matroosfontein church.
Lee Ashton Hess commented: “This world will miss your humble spirit. I will miss you cuz . And now, you get your rest with our most high God.”
A Facebook group called Matrics of TVHS (Table View High School) also wrote a message dedicated to Jesse and video showing a vibrant young woman.
The young woman’s grandfather, Chris, was reportedly found tied up in the toilet, and Jesse was found on a bed.
Police are calling for anyone with info of the crime to contact Crime Stop on 08600 10111.Daily Voice