Video footage of the sickening incident showed the boy grabbing the firearm from a table and fooling around with it for a few seconds before pulling the trigger as his mum turned to look at him.
Mélanie G., a 31-year-old mother-of-one, was attacked several times with a knife by the unnamed teenager outside the Françoise Dolto secondary school in Nogent, northeast France
Michael Ives, 47, and Kerry Ives, 46, are on trial accused of murder, causing or allowing the death of a child and cruelty to a child - which they deny.
She appeared on Lorraine today (pictured), fresh off the back of starring in Bridget Jones: Mad About The Boy, as Chloe, the nanny to Bridget's children.
Police and social workers' fear of being seen as discriminatory may have contributed to the death of Abiyah Yasharahyalah, three, who died in early 2020 from a respiratory illness.