Paranoid schizophrenic could spend rest of his life in Broadmoor after decapitating flatmate

Karl Addo hacked Sergio Marquez, 23, to death in a prolonged attack in Bournemouth

A paranoid schizophrenic has been told he could spend the rest of his life locked up after killing and decapitating his flatmate.

Karl Addo was described by medics as being profoundly mentally ill and borderline insane and will be held in Broadmoor.

He was jailed for life and will serve a minimum of six and a half years but Mr Justice Burnett told him: “You will be detained for at least six and half years but will not be released unless the relevant authorities conclude that is it safe to do so.

”Given all that I have heard, you must recognise that there is a real possibility that such a conclusion will never be reached.“

Addo hacked Sergio Marquez, 23, to death in a prolonged attack in Bournemouth believing him to be part of a gang intent on torturing and killing him.

The dead man’s mother, Maria Carmen Marquez Torres, said: ”Sergio was a kind, good-hearted and beautiful man who touched the lives of everyone who met him.

“I have lost my son and the world has lost a wonderful man. I believe that I have received justice for me and for Sergio.

”No sentence would ever be sufficient and nothing will ever compensate me for the loss of my son, but I find comfort in the fact that Mr Addo will not have his freedom for a long time and inflict this pain on any other family.“

Detective Inspector Stewart Balmer, of Dorset Police, said: ”This was a horrific offence committed against a young man who had come to the UK to broaden his horizons and improve his English.

“This is a tragic loss of life and it has deeply affected all those who knew Sergio. Today's proceedings have brought to an end the investigation and will hopefully give the family some closure.”

Addo, 30, an engineering graduate, had been a voluntary patient at the Huntley Mental Health Centre in London but absconded the day before a mental health tribunal decided in October 2011 he should be sectioned.

He moved to Bournemouth and killed the hotel waiter on July 17 last year. Police officers arrested Addo nearby covered in blood, the court was told.

Flatmates told police that Addo had been acting strangely, that he used to steal food from them and had used book pages as toilet paper. He had not paid his rent and had been told to leave by the landlord, the court heard.

Mr Marquez, from Spain, had sent a note about his anti-social behaviour and Addo resented it, the court heard.

The victim had tried to defend himself from the attack but was cornered in a room. A neighbour heard some of the attack and Mr Marquez saying “please Karl, please Karl”, furniture being dragged around and then Addo laugh.

Addo had denied murder but admitted manslaughter through diminished responsibility.

Start your day with The Independent, sign up for daily news emails
Latest stories from i100
Have you tried new the Independent Digital Edition apps?

Day In a Page

Fifa corruption: The 161-page dossier that exposes the organisation's dark heart

The 161-page dossier that exposes Fifa's dark heart

How did a group of corrupt officials turn football’s governing body into what was, in essence, a criminal enterprise? Chris Green and David Connett reveal all
Mediterranean migrant crisis: 'If Europe thinks bombing boats will stop smuggling, it will not. We will defend ourselves,' says Tripoli PM

Exclusive interview with Tripoli PM Khalifa al-Ghweil

'If Europe thinks bombing boats will stop smuggling, it will not. We will defend ourselves'
Raymond Chandler's Los Angeles: How the author foretold the Californian water crisis

Raymond Chandler's Los Angeles

How the author foretold the Californian water crisis
Chinese artist who posted funny image of President Xi Jinping facing five years in prison as authorities crackdown on dissent in the arts

Art attack

Chinese artist who posted funny image of President Xi Jinping facing five years in prison
Marc Jacobs is putting Cher in the limelight as the face of his latest campaign

Cher is the new face of Marc Jacobs

Alexander Fury explains why designers are turning to august stars to front their lines
Parents of six-year-old who beat leukaemia plan to climb Ben Nevis for cancer charity

'I'm climbing Ben Nevis for my daughter'

Karen Attwood's young daughter Yasmin beat cancer. Now her family is about to take on a new challenge - scaling Ben Nevis to help other children
10 best wedding gift ideas

It's that time of year again... 10 best wedding gift ideas

Forget that fancy toaster, we've gone off-list to find memorable gifts that will last a lifetime
Paul Scholes column: With the Premier League over for another year, here are my end of season awards

Paul Scholes column

With the Premier League over for another year, here are my end of season awards
Heysel disaster 30th anniversary: Liverpool have seen too much tragedy to forget fateful day in Belgium

Liverpool have seen too much tragedy to forget Heysel

Thirty years ago, 39 fans waiting to watch a European Cup final died as a result of a fatal cocktail of circumstances. Ian Herbert looks at how a club dealt with this tragedy
Amir Khan vs Chris Algieri: Khan’s audition for Floyd Mayweather may turn into a no-win situation, says Frank Warren

Khan’s audition for Mayweather may turn into a no-win situation

The Bolton fighter could be damned if he dazzles and damned if he doesn’t against Algieri, the man last seen being decked six times by Pacquiao, says Frank Warren
Blundering Tony Blair quits as Middle East peace envoy – only Israel will miss him

Blundering Blair quits as Middle East peace envoy – only Israel will miss him

For Arabs – and for Britons who lost their loved ones in his shambolic war in Iraq – his appointment was an insult, says Robert Fisk
Fifa corruption arrests: All hail the Feds for riding to football's rescue

Fifa corruption arrests

All hail the Feds for riding to football's rescue, says Ian Herbert
Isis in Syria: The Kurdish enclave still resisting the tyranny of President Assad and militant fighters

The Kurdish enclave still resisting the tyranny of Assad and Isis

In Syrian Kurdish cantons along the Turkish border, the progressive aims of the 2011 uprising are being enacted despite the war. Patrick Cockburn returns to Amuda
How I survived Cambodia's Killing Fields: Acclaimed surgeon SreyRam Kuy celebrates her mother's determination to escape the US

How I survived Cambodia's Killing Fields

Acclaimed surgeon SreyRam Kuy celebrates her mother's determination to escape to the US
Stephen Mangan interview: From posh buffoon to pregnant dad, the actor has quite a range

How Stephen Mangan got his range

Posh buffoon, hapless writer, pregnant dad - Mangan is certainly a versatile actor