Speaking the Evening Standard, Catherine Seale urged parents to make sure their children check their privacy settings on Facebook.
The last thing I told him before I went away was 'don't have any parties'.
They could have been killed. Even though it had been cleaned up when I got back from France, everything felt sticky and dirty and it stunk.
There was vomit in the sitting room, cushions were completely ruined, and the sofa stank for days.
All parents should be warned that this could happen if you go away and leave your 17-year-old alone.
More top news
Aydin Onac has been suspended from his role at St Olave's Grammar School in Orpington.
Leaders of the Aslef union are recommending that their members accept the deal.
All inspirational people who have shown courage and kindness in the most difficult of circumstances.