Jenny Cupit, 24, from Warrington, Cheshire, a former hairdresser, has pleaded not guilty to murdering Kathryn Linaker, a 33-year-old deputy head teacher, who died at her home, also in Warrington, on 17 April last year.
The jury at Chester Crown Court yesterday heard a written statement from Kenneth Fellowes, who has 20 years' service with Mersey Regional Ambulance Service. He said: "The young girl dropped to the floor. It was as if she was acting."
Mrs Cupit conducted a 16-month affair with Mrs Linaker's husband, Chris.
The Linakers met Mrs Cupit and her husband, Nick, while members of the Warrington-based Centenary Operatic and Dramatic Society.
The trial continues today.Reuse content