Alleged child killer Julian Stevenson has reportedly hanged himself while in prison in France.
Stevenson, who previously in Cheltenham, was found dead on Monday while awaiting trial for allegedly slitting the throats of his son, 10-year-old Mathew, and five-year-old daughter, Carla.
The youngsters were found dead in the city of Lyon in May while Stevenson fought for their custody with his French ex-wife Stephanie Morlet.
CCTV footage of Stevenson showed him buying his children sweets while they held pink balloons hours before their deaths.
Stevenson had allegedly fled the scene on a pair of roller skates but was found walking the streets covered in blood soon after.
A source told the Herald Sun: "He hanged himself on Monday in a sports hall reserved for inmates held in solitary confinement.”
Stevenson, 48, who is believed to have had a drinking problem, had his rights to see his children curtailed after a violent clash with Stephanie in 2010.
Families from Charantonney, situated to the south of Lyon, had held a memorial for the two children alongside their mother.
Children on the walk wore white T-shirts and held white balloons in memory of their two friends.
Prosecutors were widely reported in May as having said that Stevenson, an unemployed former haulage firm manager, had admitted carrying out the double killing.
But they said at the time that they were 'not currently' charging him with premeditated murder, suggesting that he might plead diminished responsibility.
A Foreign Office spokesman said: "We are aware of the death of a British national in detention in France on December 30."