9th Cir.

Lucero v. STI Trucking Incorporated, et al.

April 30, 2026 ·3:22-cv-08035-SMB ·Unpublished · By Maria Santos

The Ninth Circuit affirmed a jury verdict for a truck driver injured in a collision, rejecting defendants' challenges to the award of compensatory damages and the denial of punitive damages. The court held that the plaintiff presented sufficient medical evidence to prove causation for his vision loss and that the defendant driver's conduct did not meet Arizona's high bar for outrageous behavior required to support punitive damages.

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Plaintiff Joseph Lucero sued STI Trucking Incorporated and its employee, Alexander Kim, following a collision where Kim was driving an STI vehicle. Lucero alleged that Kim's negligence caused him significant injuries, including vision loss. The case proceeded to a jury trial, which returned a verdict in favor of Lucero. The defendants appealed, challenging the denial of summary judgment on punitive damages, the sufficiency of the evidence supporting the causal link between the accident and Lucero's vision loss, and the district court's refusal to provide a comparative fault jury instruction. Lucero cross-appealed, seeking to reinstate direct negligence claims against the trucking company and to overturn the summary judgment on punitive damages.

The Ninth Circuit addressed the defendants' arguments regarding punitive damages, causation, and jury instructions. First, the court examined the standard for punitive damages in Arizona, which requires that the defendant's 'evil hand was guided by an evil mind.' This means the conduct must be 'outrageous, oppressive or intolerable.' The court found that Kim's conduct, which included negligently attempting to pass Lucero's truck, failing to provide a recorded statement, and failing to complete mandated drug testing, did not create a risk substantially greater than that necessary to make him negligent or grossly negligent. Furthermore, the alleged negligence by STI in hiring or entrusting the vehicle to Kim did not constitute the 'outrageous conduct' required to sustain a claim for punitive damages in negligence cases. Consequently, the summary judgment denying punitive damages was proper. Second, the court reviewed the sufficiency of the evidence regarding causation. The defendants argued there was no proof that the accident caused Lucero's blurry vision. The court noted that an ophthalmologist provided a differential diagnosis including 'trauma given recent MVA' as a possible cause. Lucero had 20/30 vision in his left eye shortly before the accident, but immediately after the accident, he experienced blurry vision, and within a month, his vision dropped to 20/300. Citing Arizona precedent, the court held that medical evidence of the possibility of a causal relationship, combined with the plaintiff's report of symptoms immediately following the accident, was sufficient to support the jury's finding of causation and the damage award. Third, the court addressed the refusal to give a comparative fault instruction. The defendants had not requested such an instruction in a timely manner, failing to comply with local rules and the trial-setting order. Additionally, the defendants had approved Lucero's jury instructions, which expressly stated that no comparative fault instruction would be given. The court held that by approving the instructions, the defendants waived any objection to the omission of the comparative fault instruction. Finally, the court addressed the denial of a motion in limine regarding 'reptile tactics' and a motion for a new trial based on attorney conduct. The court found that the defendants failed to identify specific evidence they sought to exclude or show that the plaintiff's counsel's closing arguments, which appealed to the jury's conscience and referenced who pays for damages, constituted misconduct or prejudice. The court concluded that the district court did not clearly err in its evaluation of the attorney conduct.

The judgment for Lucero stands, meaning the jury's award for his injuries, including vision loss, remains in effect. The decision clarifies that under Arizona law, standard negligence and post-accident procedural failures by a driver do not automatically trigger punitive damages; plaintiffs must prove 'outrageous' conduct. It also reinforces that medical evidence establishing a possibility of causation is sufficient to survive challenges to damage awards. The ruling leaves the direct negligence claims against the trucking company unresolved on the merits but notes that since punitive damages were denied and no separate damages were sought from the company, the outcome is not prejudicial to the plaintiff.

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