A man serving more than 3,000 years in jail for the murders of 12 people in a cinema warned prison authorities he could kill again, according to newly released footage.

James Homes walked into a showing of The Dark Knight Rises in Aurora, a suburb of Denver, Colorado, and opened fire in July 2012. The attack, which he carried out while listening to loud techno to drown out his victims’ screams, also left 70 people injured.

The jury at his subsequent trial dismissed his defence of mental illness, and he escaped the death penalty but was sentenced to 12 life sentences plus 3,318 years in jail.

US prosecutors have now released hours of video showing him talking about the massacre to William Reid, a court-appointed specialist who evaluated his sanity.

When asked if he was to pose a danger to anybody, he told the psychiatrist: “Well, if I killed somebody then there’s a likelihood that I would kill again.”

Mr Reid was also heard asking Holmes whether the prison authorities “should be worried about you”. He replied: “I’d say so, yeah.”

Holmes also revealed he did not have a plan for the aftermath of the murders.

He said he did not “whether to die or not or drive away or where I would go – I kind of left that all up to the spur of the moment.”

Holmes also said he felt uncomfortable being handcuffed when found by police officers, but otherwise had no feelings about his arrest.

“I didn’t have any feelings about it,” he said. “I just kinda felt it was something that was going be done … I didn’t have any feelings.”

Most of the 2014 videos were shown to the jury at Holmes’ trial.

The new movie ….. Here we go again: people across the world are walking out of Joker screenings, calling for the film to be ‘banned’.

Could there be a connection between Murdering people like this above and these movies. Don’t pollute your mind with garbage.