Shocking footage shows a man arrested for killing his neighbor laughing and telling police “I warned you” after stabbing him 27 times, a court heard.

Can Arslan, 52, was detained by officers after allegedly stabbing dad-of-three Matthew Boorman, 43, to death.

He is on trial for murder, which he denies on the grounds of diminished responsibility and claims he was in the grip of a psychiatric disorder. The jury heard he has admitted attempted murder, GBH with intent and affray.

Bristol Crown Court heard he left Mr Boorman’s body behind after having a cigarette and wounding his wife Sarah Boorman to try and continue his killing spree last October.

He was then seen on camera being forced out of the home of another neighbor Peter Marsden, who he stabbed eight times, before being confronted by brave off-duty police officers who cornered him with golf clubs and wooden slabs.

Police eventually arrived to arrest him and he dropped the knife when a “red dot” of a taser was pointed at him.

Footage shown to the jury – and now released by Gloucestershire Police – shows Arslan laughing to himself about what he had done.

Arslan, who is lying on the road with his hands cuffed around his back, is heard swearing at police and saying, “you’re next motherf***er, you’re next.”

After his chilling chuckle, he asked his arresting officer: “He is dead, isn’t he? I warned you, the police. One year. Look, it happened.”

He later added: “I warned them I was going to murder him,” before chuckling to himself again.

“He was against my son, my wife. Hahaha.”

Arslan also claimed to be “special forces” and pleaded with cops to put handcuffs around the front as he has arthritis.

He was then heard threatening them again and calling them “motherf***ers.”

“There is a bounty on your head” he said, and repeatedly warned them “you are next.”

The killer is then locked into the back of the police car and driven away from the scene, in Walton Cardiff near Tewkesbury, Gloucestershire.

Jurors also saw clips taken on the day of Mr Boorman’s killing, some of which has been released by police.

It starts with off-duty police officer Stephen Wilkinson, who was carrying a piece of wood, following Arslan as he walks towards the rear entrance of neighbor Peter Marsden’s home.

Minutes earlier, Arslan had fatally stabbed Mr Boorman on his front lawn and was heading to confront Mr Marsden.

Mr Wilkinson is trying to make him drop the knife, telling him, “You stand still, now. Don’t you f*****g go down there. Put the f****** knife down now. Put it’s down.”

Arslan forces the gate into Mr Marsden’s garden and the CCTV then shows Mr Marsden wrestling him out of his home, having been stabbed eight times, while Mr Wilkinson hits him with the wood.

Mr Wilkinson can be heard telling Mr Marsden to lock his door, and he leaves the garden and goes back into the street.

Arslan then lights a cigarette and leaves, where he is again confronted by Mr Wilkinson and other neighbours, who are now armed with golf clubs.

The footage ends with Mr Wilkinson again telling Arslan to put the knife down, and the attacker then walks back towards the Boormans’ home.

When Arslan was being booked in for custody after his arrest, he repeated his claims to officers and said: “I told police I was going to murder him. I murdered him.”

He also told officers: “I warned you people were going to die tonight. More people are going to die tonight. There are contracts on their head.

“I told you I was going to murder him. I was a sniper in the army and I told him not to mess with me. I killed 50 people in the Kurdish army.”

The prosecution told the court he was motivated by “anger and revenge” after a long-running dispute with neighbors that began over a parking dispute.

They had been trying to evict Arslan and had succeeded in getting a civil injunction, the court heard.

It was said Arslan had subjected Mr Boorman, and others at the new-build development, to years of threats and abuse and had been charged with harassment just a week before the killing.

‘Abnormality of character’

Dr John Sandford, giving evidence for the prosecution, said he carried out an interview and evaluation of the defendant and determined he was not suffering from major mental problems, neurological disorder or a major learning disability.

Instead, he diagnosed ‘abnormality of character’ which he said was a personality disorder. He also said he expressed no remorse for the killing of Mr Boorman and felt it was a “justifiable act” as he had been “persecuted.”

He added: “I found him quite paranoid of other people, emotionally unstable, anti-social and quite narcistic.

“He knew what he was doing it, why he was doing it and that it was morally wrong.”

Dr Sandford said he found him fit to stand trial and plead and, in his view, he didn’t fit the criteria for a partial defense of diminished responsibility.

He added: “He believed his neighbors had been unfair to him. He was perfectly aware of the facts in the case and knew exactly what I was talking about. He recognized he was stubborn and had anger problems and others could recognize his action as evil , although I have justified them.”

Dr Sandford said he saw himself as a “tough, humble and proud” man.

But he added: “He expressed no remorse. He saw it as a justifiable act and felt persecuted.

“He felt he was the victim of the eviction notice and injunction and saw it quite reasonable to take the life of one person and attempt to take the take the life of another person.”

Dr Sandford said he spoke very negatively about his neighbors who he claimed were ‘jealous’ of him and he saw Mr Boorman as the “leader” in terms of the injunction.

The defendant also claimed he could not remember anything from the day itself after taking an “overdose” Dr Sandford added: “He reported no memory of the 5 October. His last memory was taking an overdose and going to bed. His next memory he said was waking up in police custody.

“I accepted he had killed Mr Boorman and assaulted his neighbor and accepted the CCTV.

“He said ‘I will look like an evil man’ and accepted problems with his anger and said he was ‘perfectly able’ to kill someone.

“He said ‘every man has his limits’ and, in his view, he was driven to this. He said ‘what else did they expect – I was driven to kill him.”

Dr Sandford said the defendant also claimed he had killed 61 people during his career in the military.

He added: “He had no guilt in killing the neighbor – he said he believed he deserved to die.

“There was no regret and no remorse – his greatest surprise was he did not kill more people.

“He went on to see himself as the victim.

“On the CCTV it was quite clear what his goal was. To kill Mr Boorman and attack the neighbour, and how he is going around achieving that. He was quite controlled in the way he stabs – it was not a frenzy.”

Dr Sandford was giving evidence for the prosecution. Arslan’s defense team will produce a second expert when they open their case.

The trial continues.