The brother of a Scottish police officer murdered on a London housing estate hopes his killer "never sees the light of day again".

Stefano Brizzi killed Gordon Semple after meeting him on the dating app Grindr and later attempted to dispose of his body in a bath of acid.

The crystal meth addict claimed Mr Semple died accidentally when a leash he was wearing slipped during a "sex game gone wrong".

A jury at the Old Bailey found Brizzi guilty of murdering the Inverness native after six days of deliberations.

Ahead of Brizzi's sentencing next week, Ronnie Semple told STV News: "It has been a nightmare. No matter what Gordon was doing, the final outcome was totally undeserved.

"What sickens me more than anything is that his body could be treated in such a way. We went to his funeral but we don't really know what we buried.

"It was like losing him all over again when we found out what had happened."

During his trial, the court heard how Brizzi had killed Mr Semple on April 1 after arranging a sex party at his home.

The police officer went to the flat on the Peabody Estate - where he had been told there would be illegal drugs - despite being on duty at the time.

After strangling Mr Semple, Brizzi dismembered him and attempted to dispose of his remains by dissolving them in acid and dumping body parts on the banks of the Thames.

Mr Semple first learned of his younger brother's death from his long-term partner Gary Meeks.

He said: "I got a phone call from Gary and all he said was: 'He's dead'.

"We knew nothing about his lifestyle at all, he had his own life in London and had been with Gary for 25 years. Everybody has secrets and that doesn't make you a bad person."

The brothers were raised on the Raigmore estate in Inverness and attended Raigmore Primary School and Inverness High School.

Mr Semple studied accountancy and joined the Bank of Scotland in 1973, working in Inverness, Dundee and London before applying to the Metropolitan Police in 1986.

He signed up with the intention of serving on the force's anti-fraud squad but was instead stationed in Peckham, south east London.

"He thought 'I'll join the police and with my banking experience I'll be on the fraud squad in six months' but it doesn't work like that," his brother said.

"Gordon went to Hendon for the training and was then posted to Peckham but he loved it there. He loved the life."

The police officer was a keen charity fundraiser and ran the London marathon six times.

"He took part in half a dozen London marathons and did other half-marathons and marathons for charity.

"His local pub does a lot of work for cancer research and Gordon, Gary and three other guys organised lots of things for charity.

"They raised thousands and thousands of pounds."

Following his death, Mr Semple was given a full police funeral complete with a motorcycle cavalcade.

His brother said: "I was so proud. From his house to the church was only 600 yards but the streets were lined by officers in full dress.

"A police helicopter hovered above the coffin and tipped its rotors to Gordon. Saltires were hanging from windows.

"I hope his killer never sees the light of day again. But there can't be justice for Gordon."