State v. Hamann

HARRIS, Justice.

In this appeal from his conviction of first-degree murder defendant assigns error in trial court rulings and jury instructions. We affirm the trial court.

The defendant, John R. Hamann, shot and killed Richard Slattery at Slattery’s Davenport park board office on May 10, 1977. Defendant’s father and Slattery were co-employees and apparently rivals for leadership of the department.

The trial centered on the defendant’s insanity defense. Both sides introduced expert psychiatric testimony on the question. Defendant’s witness, Dr. Paul Frahm, testified defendant’s ability to know…