Mark Arthur denies murdering wife Heather in Gosforth
A Newcastle businessman has denied murdering his wife after hearing that their marriage was over.
Heather Arthur, 50, was discovered stabbed to death at the couple's home in Woodbine Road, Gosforth, in April.
Mark Arthur had previously admitted manslaughter, but that plea was not accepted by prosecutors.
The 50-year-old, who ran a computer services company with this wife, told Newcastle Crown Court he lost control and recalled little of what happened.
Mrs Arthur was having an affair with the saxophonist in a jazz band she played in, the court was told.
The jury heard she had also complained to friends about her husband's behaviour as the marriage fell apart.
The trial continues.