Police have released video footage of the alleged killer of a 14-year-old boy unboxing a samurai sword and calling the weapon "freaking sexy".

Marcus Monzo, 37, denies murdering teenager Daniel Anjorin and attempting to kill four others during a 20-minute rampage in Hainault, east London, on 30 April last year.

Jurors at the Old Bailey have been shown a four-minute video clip from 4 April, which was recovered from his iPhone after his arrest.

The Spanish-Brazilian national, from Newham in east London, appears to be reviewing a sword he says was "handmade in Japan" and "took more than a month to reach me".

Dressed in a yellow hoodie, black shorts, toe socks and flipflops, and wearing headphones, he is standing on black mats next to a ginger cat he calls the "Wizard".

A martial arts-style punching bag and another sword on a skateboard can be seen in the background.

"This just came through… Ninja stuff," he says before opening a long box containing a sword. "So I'm sort of obliged to do some ninja stuff with the Wizard."

Monzo also says "freaking sexy" and "ooh" as he lunges and makes different moves with the sheathed sword.

The court has previously heard Monzo was a "talented martial artist".

Prosecutors said he "killed and skinned" his cat before driving his grey Ford Transit van at speed into pedestrian Donato Iwule.

He then struck him in the neck with the same weapon used to kill Daniel, who suffered "essentially a near-decapitation", the jury was earlier told.

PC Yasmin Mechem-Whitfield was also repeatedly struck with the 60cm blade, before Monzo entered a nearby house and attacked a couple inside, then struck another police officer, it is alleged.

Monzo has pleaded guilty to two counts of possessing an offensive weapon - a katana sword and a tanto katana sword.

He denies charges of murder, attempted murder, wounding with intent, aggravated burglary and possession of a bladed article.

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The jury has been told there is no issue about who carried out the attacks and that Monzo was under the influence of cannabis at the time.

But prosecutors say his psychotic state was self-induced and does not meet the threshold for diminished responsibility.

The trial continues.