Aurora shooting suspect James Holmes (Associated Press).

The attorneys wrote in an Arapahoe County court filing the details of Holmes’ offer and said the case could be resolved as soon as the next hearing on April 1 if prosecutors accept the plea. 

"Prior to arraignment, Mr. Holmes made an offer to the prosecution to resolve this case by pleading guilty and spending the rest of his life in prison, without any opportunity for parole," Holmes' attorneys wrote.

Holmes, 25, is charged with first-degree murder for a shooting rampage last July that killed 12 and wounded at least 58 during a midnight screening of “The Dark Knight Rises.” 

A judge entered a not guilty plea on Holmes’ behalf on March 12, USA Today reported, and said Holmes could enter a not guilty plea by reason of insanity later. 

According to ABC News, his trial is scheduled to begin Aug. 5. 

Read more of Neon Tommy’s coverage on James Holmes here.

Reach Executive Producer Agnus Dei Farrant here.