A photograph of the knife allegedly used to kill a Northampton family has been released, after it was shown to the jury in the trial of Anxiang Du.
The 54-year-old from Coventry denies murdering four members of the Ding family at their home in Wootton in 2011.
The trial is due to resume on Monday, when the defence begins its case.
A Judge has described how Anxiang Du was a "man on a mission" on the day he killed a Northamptonshire family.
Today the man who repeatedly stabbed a family of four was found guilty of murder in what was described in court as a cold-blooded massacre.
A killer who massacred a family of four was able to flee the country after police mishandled a 999 call from one of the victims.