A jealous man tried to murder his live-in partner after convincing himself that she was being unfaithful.

In a plot straight out of Shakespeare’s Othello, Alan Brough convinced himself she was cheating and decided to strangle her.

A jury has found obsessive Brough guilty of attempted murder after attacking his innocent girlfriend Teresa O’Brien-Morrish. He had denied the charge.

Brough attacked her in May this year at his home in Halliday Drive, Walmer – leaving the 67-year-old barely able to breathe.

Now the 63-year-old businessman is facing a long jail term after the judge ordered psychiatric reports before next year’s sentencing hearing.

The jury at Canterbury Crown Court had heard how he had installed a spy camera and paid for a private eye to follow her.

Prosecutor Eloise Marshall told a jury at Canterbury Crown Court that his paranoid suspicions were unfounded.

Brough had made an emergency call to police at 10.20pm, telling the operator he thought he had killed his partner.

“He went on to say that he thought she had been having an affair and that he had flipped and got her round the neck.”

The prosecutor added: “He went on to say that he thought she had been having an affair and that he had flipped and got her round the neck.

“At the time he was making the call, Ms Morrish was struggling to breathe and Brough could be heard begging her to breathe and begging her to stay alive.

“He can be heard saying: ‘Come on Tess...come on breathe!’ Although he told the operator he thought she was having an affair, that wasn’t the case at all,” the prosecutor said.

Police found Ms Morrish unconscious, lying on a bed in a spare bedroom, her body convulsing and her teeth clamped shut.

Ms Marshall said a doctor was flown by helicopter to treat her before she was taken to the William Harvey Hospital where she remained sedated for 48 hours.

“She had various injuries, including dots of bloods around the eyes, caused by her neck being compressed, for between 15 to 30 seconds,” it was alleged.

The victim had also suffered damage to her voicebox after being hit possibly by “a fist”, the prosecutor claimed...although she had no memory of any part of the attack.

Investigating officer Detective Constable Katrina Whitehead of the Kent and Essex Serious Crime Directorate said: "This vicious attack was terrifying for the victim who had to be rushed to hospital as she was unconscious and unresponsive. There is never a reason or an excuse for anyone to suffer violence like this.

"Thankfully Brough has been found guilty despite subsequently denying the charges of attempted murder, thereby putting the victim through the ordeal of a trial.

"He will now serve a sentence that I hope sends a clear message that domestic abuse will never be tolerated."

Well-dressed Brough showed no reaction to the verdict or being remanded in custody until February for the next hearing.

He was told he faced a jail sentence “measured in years”.