Murdered British mother seen dancing with lover months before killing / Murder of British mother Karen Carter in France investigated as grudge killing / Murder of British mother Karen Carter in France a 'crime of passion' / Murdered Brit mum's 'female friend', 69, arrested as husband fears she was killed by 'someone with a grudge' / 'Mum was killed but her name protects other women' / 'No scope of reformation': HC confirms death for mom killer / Family pay tribute to 'much-loved' mother as man charged with murder / Murderers can get away with murder - Nottingham victim's mother / Murder-accused mum 'too ashamed to seek help' / Details of young mum's brutal murder