Elizabeth Lagone, Meta's head of health and well-being arrives at Barnet Coroner's Court, north London, to give evidence in the inquest into the death of Molly Russell.
The 14-year-old schoolgirl from Harrow, north-west London, viewed an extensive volume of material on social media, including some linked to anxiety, depression, self-harm and suicide, before ending her life in November 2017.
