A motor mechanic faces a life sentence for knifing to death a company boss.

Gavin Hogg, 34, was yesterday convicted of murdering David Burrows, 36, outside his M & B Haulage depot in Ravensthorpe on September 14.

Hogg was also found guilty of wounding Mr Burrows' father, Darrell, and his half-brother, Clive Hoyland, with intent to cause grievous bodily harm.

The jury at Leeds Crown Court found Hogg not guilty of attempting to murder Darrell Burrows, 62, and Mr Hoyland, 52.

The jury returned unanimous verdicts after a day of deliberations.

Judge James Stewart, QC, said he will sentence Hogg, of Wellhouse Lane, Mirfield, on Friday.

The judge said that Hogg will automatically get a term of life imprisonment but he would examine reports before setting a minimum term he must stay behind bars before he can be assessed for parole.

During the two-week trial the jury heard that Hogg had run his business GL Autos at the site where Mr Burrows was based since 1998.

Prosecutor James Goss, QC, said the knifings were the culmination of a long dispute over land and litter.

Hogg attacked the family the day after he was convicted of punching Darrell Burrows in the face and trying to throw him in a canal.

Mr Goss said Hogg sped to the site on September 14 last year after he found his Mercedes car had been smashed up.

He armed himself with a knife and stabbed David Burrows twice as he walked out of the car park at M & B. Darrell Burrows and Mr Hoyland were stabbed when they went to help David.

Mr Goss said: "Hogg said, 'I told you I would do it' and then ran, discarding the knife."

Hogg told the jury he was on anti-depressants at the time and they had cut off his emotions.

He was out of control when the incident happened. He said David Burrows could have been accidentally stabbed and he could not remember stabbing either of the other two men.

After the verdicts, Detective Superintendent Phil Sedgwick said that by denying all the offences Hogg had put the victims and witnesses through a terrible court ordeal.

"This is typical of his vindictive attitude to the Burrows-Hoyland family," he said. "He is a dangerous man and prison is the safest place for him."

Events leading up to the murder are being investigated by the Independent Police Complaints Commission. Previous incidents involved in the dispute have been referred by West Yorkshire Police to the IPCC for its inquiry.