A delivery driver who stabbed his stepdad’s 80-year-old father to death with a steak knife in a row over his inheritance has today been jailed for at least 21 years.

Mark Robinson, 35, knifed widower Albert Wright, of Trelawney Road, Hainault, 31 times “in order to inflict suffering” on his victim’s son David.

David Wright had married Robinson’s mother Susan just three months before her death from liver disease and her son held him “at least partly responsible”, the Old Bailey heard.

Robinson was angry he inherited the bulk of her estate, including a house in Borehamwood, Hertfordshire, and lucrative pension funds.

But the court heard David had paid Robinson �22,500 from the money he had inherited, on the understanding it would be paid to Robinson’s 15-year-old daughter.

After the February 25 murder Robinson told police: ‘I wanna stick it to him and if he has to live the rest of his life without his dad then so be it.’

Robinson, of Green Court, Green Close, Luton, admitted murder at a hearing on Monday.

Judge Andrew Bright said: “It’s clear that the murder of Albert Wright has had a profound and lasting impact, not just on David Wright but on the family friends and neighbours of Albert Wright.

“They have all had to come to terms in particular with the manner of Albert Wright’s death at your hands, which was shocking and deeply distressing for all those who knew him.”

Prosecuting, Roger Smart said: “The defendant attacked the deceased almost immediately after he answered the door and did not exchange words with him.”

In a statement read to the court, David Wright said: “My father was my only living family member with whom I had a relationship.

“Dad and I were very close. I was living with him at the time he was killed and his death has left me devastated.”