The River Valley High School (RVHS) incident last Monday was a "wake-up call" for Ms Sarah Mahat.
One of her four daughters is a year younger than the 13-year-old victim, while another is a year younger than the 16-year-old alleged perpetrator.
Already a subscriber? Log in
Read the full story and more at $9.90/month
Get exclusive reports and insights with more than 500 subscriber-only articles every month
ST One Digital
$9.90/month
No contract
ST app access on 1 mobile device
Unlock these benefits
All subscriber-only content on ST app and straitstimes.com
Easy access any time via ST app on 1 mobile device
E-paper with 2-week archive so you won't miss out on content that matters to you
