The two teenagers who killed the transgender 16-year-old meticulously planned their sadistic attack on the Snapchat app.
Emma, 43, has mounted a quest to educate parents on how to keep kids away from social media and monitor their behaviour online.
She steadfastly believes that parental intervention could steer youngsters away from violence and ultimately save lives.
And she's even banning mobiles at her own school from September.
The headteacher says: "You can't turn back time - but if monitoring controls had been in place, maybe someone would have been alerted to something
"The vast majority of parents are not taking these steps, through no fault of their own, which is why we are pushing for them to become the norm and not the exception."
INTERVENTION
Scarlett Jenkinson and Eddie Ratcliffe were 15 when they lured Brianna to a park last February and stabbed her 28 times.
The pair, now 16, were jailed for life four months ago for the "exceptionally brutal" killing Mrs Justice Yip, who sentenced them at Manchester Crown Court, said Jenkinson, who will serve at least 22 years, was motivated by a "deep desire to kill", while Ratcliffe. who got 20-plus years, was partly spurred by his hostility to Brianna's transgender identity.
هذه القصة مأخوذة من طبعة June 23, 2024 من The Sunday Mirror.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.
بالفعل مشترك ? تسجيل الدخول
هذه القصة مأخوذة من طبعة June 23, 2024 من The Sunday Mirror.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.
بالفعل مشترك? تسجيل الدخول
Kulusevski: These are my games...we can hurt Reds
EJAN KULUSEVSKI is relishing he first of three huge meetings ith Liverpool - insisting ottenham have the tools to hurt\" Arne Slot's Premier eague pace-setters.
Steely Keely
SPOTY queen has 'already beaten 800m world record'
On the Rocky road to stardom
ROCKY FLINTOFF is already the youngest cricketer to be picked for an England Lions tour.
Drivers go green
Gold, yellow and purple cars are also top choices..but pink stinks
GOING THE EXTRA MILL
Mirror sees our biggest paper recyclers working flat out
It's bank of mum & debt
MUMS and dads who helped their kids on to the property ladder now want their money back as they battle the soaring cost of living.
I'm working in a winter wonderland
Coolest grandad spends Xmas in Antarctic with penguins and seals
If it was my child missing I'd want people rushing to help
INVESTMENT banker James Walker leads a double life.
People will hate Cindy even more after this story
Actress on festive EastEnders bombshell
FORCES STAY ON FESTIVE STANDBY
10,000 ready for any Xmas action