A TV satellite engineer faces a life sentence today for stalking and stabbing to death a woman after waging a three-year neighbour from hell war.

Trevor Gibbon, 48, ambushed his next door neighbour and stabbed her 33 times as she walked to Northolt Park station for a train to work.

The previous day he had pleaded guilty to harassment and was banned by a court from contacting Alison Morrison.

Gibbon had constantly harassed Mrs Morrison and her husband in petty rows over parking and skateboarding outside their Harrow homes.

He created so much trouble that they had to spend £2,000 to install CCTV outside their home.

Furious about the restraining order imposed on him – which he considered to be a victory for the Morrisons – he plotted revenge.

A week before Christmas last year he laid in wait armed with two knives on Mrs Morrison’s regular route to the station.

He stabbed through her lungs, diaphragm and liver and inflicted a six-inch deep wound to the bowel then drove off in his Mercedes leaving her for dead.

Mrs Morrison was able to gasp “Trevor Gibbon did this to me” before she died.

Gibbon was arrested more than 100 miles away on the A16 in Lincolnshire with dried blood still on his hands.

He claimed he had been mentally unwell at the time.

But today a jury rejected his defence and unanimously convicted him of murder.

He will be sentenced on Tuesday by Judge Timothy Pontius.

After the verdict Mrs Morrison’s teenage son told how the murder had split by forcing him into depression so he is no longer on speaking terms with his father.

In a statement read to the jury Kori Morrison, 17, described how he’d been taken out of school to hear his mother had been stabbed and felt “as though I was being crushed by the weight of the world itself.”

Jurors wiped away tears as he went on: “I felt completely drained of life, I laid down essentially sunken into my bed, did nothing, ate very little and cried a lot.”

“Many things have fallen apart in my life, especially the relationship with my dad,” he went on.

Cedric Morrison told the court he hoped to have a meeting with his son, who now lives with relatives in Portsmouth, after the verdict as a first stage towards reconciliation.

He said he believed the major problem for his son was that Gibbon’s partner Maria Perrett still lived next door and, he told the court, “she shows no remorse.”

Mrs Morrison’s sister Lorraine Brathwaite also entered the witness box and directly challenged Gibbon, telling him: “I will not be another victim of your hatred and selfishness.

“I refuse to allow my sister’s death to be in vain, you have directly caused me the worst pain I have ever felt in my life.”

During the trial prosecutor Brian O’Neill QC told the court the rows between the neighbours dated back to 2011 soon after Mrs Morrison and her husband Cedric had moved in.

The police and the local authority tried to broker a peace settlement but without success.

Gibbon refused to sign an acceptable behaviour contract and a prevention of harassment letter in the months leading up to the murder.

Eventually Gibbon was arrested and charged with harassment.

Said Mr O’Neill: “The Morrison family wanted to live in peace with their neighbours Gibbon and Ms Perrett.

“They, in contrast, seemed to want to take almost every opportunity to escalate things.

“While the list of incident may sound trivial their cumulative effect was such that it had a deteriorating effect upon the health and wellbeing of Mr and Mrs Morrison.”

On the day of the murder a local resident heard a woman screaming and saw Gibbon armed with a long bladed, black handled knife stabbing her “slowly.”

Another described the stabbing action as “measured, almost calm and calculated”.

When paramedics told her they were doing everything they could to save her, she replied: “You’re not, you’re going to lose me.”

Said Mr O’Neil: “Mrs Morrison had left home to make her way to work with every reason to feel content” but now ”she was dying and she knew it.”

She died later that morning and a post mortem found 33 separate stab wounds including seven defence wounds as she tried to grab the knife and fend off the blows.

When arrested Gibbon told officers he was “heading for the coast” and kept repeating “what have I done?”

In a statement he later said: “At the time I was acutely unwell and any act which I may have done would have been carried out in the context of the symptoms of my mental illness.

“Due to my mental disorder I would not be able to form the mental element of the alleged offence.”

Giving evidence, Gibbon said he had stashed two knives in a Tesco bag in his car because he was contemplating suicide after the neighbour dispute had landed him in court.

Asked what was on his mind when he spotted Mrs Morrison, Gibbon said: "I just went hazy."