Homes and Property | Home PageFourth person held over French students' deathMutilated: Gabriel Ferez, left, and Laurent Bonomo were bound and tortured before being burntBenedict Moore-Bridger|Evening Standard13 April 2012A fourth person has been arrested over the murders of two French students.David Sonnex, 23, was held after his brother and a woman handed themselves in to police. He was being questioned today over the murders of biochemistry students Laurent Bonomo and Gabriel Ferez, whose bodies were found at a flat in New Cross on 29 June.Nigel Farmer, 33, who gave himself up on Monday, was remanded in custody yesterday after being charged with the murders.MORE ABOUTBiochemistryPolice