Watching pornography and looking up serial killers on the internet, sadistic Ross McCullam clearly felt no remorse. The 30-year-old lab technician had just dumped his girlfriend’s body under some bracken down a country lane, having strangled and attempted to decapitate her at his parents’ Leicestershire home.

Tomorrow night, Elaine and Anthony Newborough will once again be made to relive the horror of their daughter, 23-year-old Megan Newborough’s murder, when her story becomes the focus of an episode of Channel 4 series 999 What Happened Next. But the couple - who are staunch supporters of The Mirror’s Justice For Our Daughters campaign, which has successfully advocated for tougher sentences and system reforms to protect women from domestic violence killers - are willing participants.

For, while McCullam was convicted of murder at Leicester Crown Court in December 2022 and jailed for a minimum of 23 years, had Megan been murdered outside the home, the minimum tariff would have been 25 years. And the couple are campaigning for disparity in sentences to change.

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