Any mention of bukit batok nature park will make me remember this case..
On 6th February 2000, 27-year-old
Linda Chua was jogging at the Bukit Batok Nature Park around 10am when she was attacked. A passer-by heard her crying for help and called an ambulance.
She was later found
lying in a 10-metre ravine naked, with a bloodied nose and mouth, and her clothes next to her. Unfortunately she did not manage to survive, and passed away a week after the assault.
Source:
https://thesmartlocal.com/read/biggest-unsolved-crimes-in-singapore/