Defendant shot and killed his estranged girlfriend Debra Dietz ("Debra") and her father Eugene Dietz ("Eugene") on Monday, August 7, 1989, at a Tucson automotive paint and body shop ("the shop") owned and operated by the Dietz family.
Since 1984, Defendant and Debra had maintained a tumultuous relationship increasingly marred by Defendant's abusive and violent behavior. Eugene generally disapproved of this relationship but did not actively interfere. In fact, the Dietz family often included Defendant in dinners and other activities. Several times, however, Eugene refused to let Defendant visit Debra during business hours while she was working at the shop. Defendant disliked Eugene and told him he would "get him back" and that Eugene would "be sorry."
Debra had rented an apartment that she shared with Defendant. Because Defendant was seldom employed, Debra supported him financially. Defendant nevertheless assaulted Debra periodically.
1 She finally tried to end the relationship after a fight during the 1989 July 4th weekend. She left her apartment and moved in with her parents, saying "I don't want any more of this." After Debra left, Defendant ransacked and vandalized the apartment. She obtained an order of protection against Defendant on July 8, 1989. In the following weeks, however, Defendant repeatedly tried to contact Debra at the shop, her parents' home, and her apartment.
2
Debra and Eugene drove together to work at the shop early on Monday morning, August 7, 1989. Defendant phoned the shop three times that morning. Debra hung up on him once, and Eugene hung up on him twice. Defendant called again and asked another employee if Debra and Eugene were at the shop. The employee said that they had temporarily left but would return soon. Debra and Eugene came back at 8:30 a.m. and began working in different areas of the shop. Six other employees were also present that morning.
At 8:50 a.m., a Tucson Police officer saw Defendant driving in a suspicious manner near the shop. The officer slowed her patrol car and made eye contact with Defendant as he left his truck and entered the shop. Eugene was on the telephone in an area where three other employees were working. Defendant waited for Eugene to hang up, drew a revolver, and approached to within four feet of him. The other employees shouted for Defendant to put the gun away. Without saying a word, Defendant fatally shot Eugene once in the chest and then smiled. When the police officer saw this from her patrol car she immediately called for more officers. Defendant left the shop, but quickly returned and again pointed his revolver at
[180 Ariz. 61]
the now supine Eugene. Donald Dietz, an employee and Eugene's seventy-year-old brother, struggled with Defendant, who then ran to the area where Debra had been working. Debra had apparently heard an employee shout that her father had been shot and was trying to telephone for help when Defendant grabbed her around the neck from behind and placed his revolver directly against her chest. Debra struggled and screamed, "No, Joe, don't!" Another employee heard Defendant say, "I told you I was going to do it, I have to kill you." Defendant then called Debra a "bitch" and shot her twice in the chest.
Several police officers were already on the scene when Defendant left the shop after shooting Debra. Two officers ordered him to put his hands up. Defendant complied and dropped his weapon, but then grabbed it and began raising it toward the officers. After again ordering Defendant to raise his hands, the officers shot Defendant several times.
A grand jury indicted Defendant on two counts of first degree murder and two counts of aggravated assault against the officers. Although he did not testify, Defendant did not dispute his role in the killings but argued he had acted impulsively and without premeditation. A jury found Defendant guilty on all counts. The trial court sentenced him to death for each of the murders and to concurrent fifteen-year prison terms for the aggravated assaults, to be served consecutively to the death sentences. This appeal followed.
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