A teenage bodybuilder filmed himself at a party saying 'I'll play this to all my new friends in jail' after he had plunged a dagger in to a dad-of-five's head, a court has heard.

George Knights, 19 of Delce Road, Rochester, is said to have dumped his victim's body in a wheelie bin before partying with stolen drugs.

Stephen Chapman, 38, was left in a fetal position, upside down in the bin and doused with sulphuric acid, Maidstone Crown Court was told.

Knights is on trial accused of murdering Mr Chapman in October last year. He denies the charge.

The jury heard how Mr Chapman's body, disfigured by the acid, was discovered in the bin at Knights' home in Delce Road, Rochester.

Prosecutor Caroline Carberry QC told the jury: "A double-edged military style dagger - a commando knife - was embedded into his skull.

"It is not in dispute that Mr Chapman was stabbed and killed by Knights on Friday, October 23 and that Knights placed the body into the wheelie bin and doused it with sulphuric acid in an effort to destroy it.

"Neither is it in dispute that having done so, Knights went out, took drugs and partied through the night; returning home briefly to take photographs on his mobile phone of the bin, before going out again. "

She alleged that Knights had earlier bragged about killing someone and even made a video of himself at the party, in which he says: "I'll play this to all my new friends in jail."

Earlier, a friend of Knights had gone to his home to collect clothes but he refused to answer the door.

The prosecutor said he appeared in an upstairs window, looking panicked and saying he had killed someone - but his friend thought it was a joke.

The prosecution has claimed that Mr Chapman - known to his friends as Ginger - had been lured to a meeting with his alleged killer on the pretext of Knights buying £2,500 worth of drugs.

"The fact is that Knights did not have the funds to buy the drugs. He had no job and had under £100 in his two bank accounts, " she added.

Two days earlier he had asked his father to put money into his account for his gym membership and his mixed martial arts training.

"His father refused to provide him with any further money and had put a stop on a credit card his son had access to.

Mr Chapman drove to Delce Road telling his pregnant partner Rebecca Leader he wouldn't be long after showing her a picture of the bare-chested Knights.

Ten minutes after arriving in the street, his phone was turned off and it was later found smashed inside Knights' home.

A dagger had been plunged into his skull, above and behind his right ear with "severe force", the jury heard.

Ms Carberry added: "It is the prosecution's case that Knights acted with some pre-meditation in killing Mr Chapman, who was helpless to defend himself against a very strong young man armed with a lethal weapon."

She revealed that police later found a typed list that the teenager had made on the notes app on his iPhone, compiled on the day of the killing, which included the words: “knife, superglue, masks and wipes”,

After the killing Knights was allegedly caught on CCTV taking a neighbour's wheelie bin which was used to place Mr Chapman's body in.

Meanwhile, Ms Leader had gathered friends and family together and had gone looking for her partner.

"Mr Chapman was helpless to defend himself against a very strong young man armed with a lethal weapon..."

The prosecutor said she telephoned Knights who told her that he didn’t know where he was but if she saw Mr Chapman she should tell him Knights wanted to talk to him.

"Again, he was comfortably lying and giving her and Mr Chapman's family false hope.

And in a subsequent call, recorded by a police officer, Knights said “it’s weird he has gone missing”, adding: ”I’m not associated to him going missing. I would never do that to him.”

Mr Chapman's family and friends went to Knights' home and some forced their way in causing the teenager to flee and report a burglary.

While police were investigating, they discovered Mr Chapman's severely corroded body near to where 12 bottles of drain cleaner, which has a 91% sulphuric acid content, were found in the kitchen.

The prosecutor added: "Six of these bottles were empty."

Knight is alleged to have used "Walter White" as "his ‘memorable name’ on a phone account.

Ms Carberry told the jury: "(It's) a name which may be familiar to some of you, no doubt, as the fictional character and protagonist of the American crime drama Breaking Bad.

"In (the show) Walter White navigates the criminal underworld by producing and distributing a drug called crystal meth - aka methamphetamine, a Class A illegal drug- to secure his family’s financial future."

Ms Carberry claimed that Knight's behaviour throughout 2020, was "stranger than fiction".

"This was a young man who inhabited a universe where he had set up his own amphetamine production at home..."

She added: "This was a young man who inhabited a universe where he had set up his own amphetamine production at home but this was no fantasy world."

Toxicology tests later showed that Mr Chapman had only taken one Tramadol, a painkiller he took for a migraine whereas Knights had consumed ecstasy, amphetamine, Xanax, diazepam, cocaine, cannabis and steroids.

The trial, which is expected to last two weeks, continues.

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