– Steve Chappell, chief crown prosecutor, CPS East Midlands
This was a brutal, shocking crime. Anxiang Du travelled to the Dings' home armed with a knife and killed the whole family in their own home.
The evidence was clear that this was an act of pre-meditated revenge and Du knew what he was doing.
The jury had the option to consider a verdict of manslaughter, but has delivered a verdict that he was fully responsible for his actions and is guilty of murder.
The Ding family were honest, hard-working and well-liked people. It is a tragedy that their lives were cut short in this way. Our thoughts and condolences are with their family and friends.
Anxiang Du was today jailed at Northampton Crown Court for life with minimum of 40 years after being convicted of murdering four members of the Ding family at their home in Wootton, Northamptonshire, in April 2011.