Prosecutors in the trial of a Guam man accused of carrying out last year's rampage that left three Japanese tourists dead and 11 other people wounded sought a guilty verdict from the jury in their closing argument Wednesday.

"Tell him with your verdict that the reality, the final curtain, the final act is to find him guilty for his horrible, evil acts — the crimes of aggravated murder and attempted aggravated murder with deadly weapons upon 14 innocent human beings," lead prosecutor Phillip Tydingco said during the three-hour closing argument.

"Don't let him walk out here on an insanity defense, that he doesn't have mental responsibility, when the evidence shows beyond reasonable doubt that he committed aggravated murder, and attempted aggravated murder," Tydingco said, pointing at 22-year-old Chad Ryan De Soto, who has pleaded not guilty due to mental illness.