Cinema Killer James Holmes Spared Death Penalty

Colorado cinema gunman James Holmes will spend life in prison without the possibility of parole after a jury rejected the death penalty for his 2012 shooting rampage.

Jurors in the closely watched trial reached a sentencing verdict on Friday after less than one full day of deliberation.

Holmes, 27, was convicted last month on 165 counts including the first-degree murder of 12 people killed in the 20 July 2012 shooting massacre. Seventy people were also wounded.

Jurors paved the way for a possible death sentence earlier in the week when they decided that aggravating factors in the case counted for more than mitigating ones such as mental illness.

However, for each of the counts read out by Judge Carlos Samour Jr, the jury of nine women and three men said: "We do not have a unanimous final sentencing verdict on this count and understand the court will impose a sentence of life imprisonment without the possibility of parole."

There were emotional scenes in the courtroom as the verdict was read out - and some of the police officers who were first to arrive at the bloody scene began crying.

Holmes' mother, who had pleaded for her son's life to be spared, sobbed and leaned her head on her husband's shoulder.

Ashley Moser, who lost her daughter in the attack and was left paralysed, shook her head and leaned it against the wheelchair of another paralysed victim.

Some families began to leave as the judge continued to read the verdict, and Holmes showed no reaction during the proceedings.

He had pleaded not guilty by reason of insanity.

After deliberating briefly on Thursday, the jury on Friday requested to review a video of the body-strewn Aurora theatre recorded after the attack.

Within six-and-a-half hours, the panel had returned its verdict.

Judge Samour Jr retook the bench and read out the verdict in court.

He also thanked the jury for their service during the four-month trial, and said they had done "a hell of a job".

They are now free to talk about the case, but he stressed that they are under no obligation to do so.

Outside court, one juror told reporters that a single juror had refused to give Holmes the death penalty on account of his mental illness - while two others remained unsure.

Refusing to give her name, she added: "All the jurors feel so much empathy for the victims. It's a tragedy. It's a devastating result no matter what.

"I am deeply, deeply sorry - that isn't even the word."

During the trial's sentencing phase, the defence had argued that executing Holmes in light of his mental illness would be wrong.

Two defence-hired psychiatrists testified that the former neuroscience student was suffering from schizophrenia and could not distinguish right from wrong.

Defence lawyer Tamara Brady asked jurors on Thursday whether they were prepared to sign the death warrant of a mentally ill person, adding it was a decision they would live with for the rest of their lives.

Prosecutors countered with testimony from two court-appointed doctors who said that although Holmes suffered from mental illness, he knew what he was doing when he opened fire inside the crowded cinema during a screening of the Batman film The Dark Knight Rises.

In his closing arguments, District Attorney George Brauchler said death was the only appropriate sentence for the "horror and evil" Holmes wrought.

Colorado has executed just one inmate in nearly 50 years.

A recent Denver Post poll showed 70% of Colorado residents surveyed favoured execution in Holmes' case.

However, victims' families had said they were conflicted over whether Holmes should be put to death.

Lonnie Phillips, whose 24-year-old daughter was killed in the attack, had concerns that there would be decades of appeals in the event of a death sentence.

Marcus Weaver, a Christian initially opposed to capital punishment, changed his mind after hearing the testimony of fellow moviegoers.

He also described seeing no remorse in Holmes' eyes as he took the stand.