'I was told she was expecting a baby…then I found out she’d been dead for 8 years'

In April 2011, Karen Edwards received a visit from a police officer telling her that her daughter, Becky, was dead. Becky had been murdered & had been lying in a makeshift grave since 2003. Despite the killer confessing, he couldn't be convicted at the time as the evidence was not admissible in court. Karen told Woman's Hour's Tina Daheley why she had to fight to see the killer brought to justice.