Prosecutors in the Colorado theater shootings have listed about 3,500 potential witnesses
they could call during the trial of defendant James Holmes, according to court documents.
The estimate was in a motion filed Tuesday in Centennial.
The number illustrates the complexity of the case. Lawyers also say nearly 40,000 pages of documents about evidence have been filed, The Associated Press reported.
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Holmes is charged with killing 12 and injuring 70 in the July 20 shootings
at a movie theater in Aurora in the Denver area.. He faces multiple counts of murder and first-degree murder. Prosecutors are seeking the death penalty.
Holmes has asked to change his plea to not guilty by reason of insanity, but the judge hasn't decided.
Another judge entered a standard not guilty plea on Holmes' behalf in March when his lawyers said he wasn't ready to plead.
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