Pascal Troadec's former brother-in-law, named as Hubert Caouissin, told investigators he had killed them in a row about the inheritance of gold bars.

The sister and brother-in-law of Pascal Troadec, one of the missing, have been detained in the city of Brest, where several items belonging to the family have been found.

Family jewellery was also found. The remains are yet to be identified. Pascal and Brigitte Troadec, both aged 49, their son Sebastien, 21, and daughter Charlotte, 18, were last seen in mid-February.

Pascal Troadec and his wife Brigitte, both 49, had gone missing along with their son Sebastien, 21, and their 18-year-old daughter Charlotte on February 16, sparking a mystery that gripped the nation.

Pascal Troadec and his wife Brigitte, both 49, their 21-year-old son Sebastien and 18-year-old daughter Charlotte, who all live together in Nantes, went missing on 16 February in a case which has ...

Traces of blood from Pascal and Brigitte Troadec and from son Sebastien were found on the staircase and ground floor during an initial search Feb. 23 of the home in Orvault, a suburb of Nantes.

A view of the house of Lydie Troadec, sister of Pascal Troadec. (Fred Tanneau, AFP Getty) French police escort suspect Hubert Caouissin to the home of Lydie Troadec, on March 8, 2017 in Pont-de-Buis.

The Troadec family - Pascal and Brigitte, their son Sebastien, 21, and his sister Charlotte, 18 - have not been seen since February 16 News Patrick Lion 17:36, 28 Feb 2017 Updated 17:48, 28 Feb 2017 ...

Troadec's friend Sherazade Rouibah, 23, said she found Macron's overtures to Muslim voters between the two rounds of voting to be cynical.