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Lawyer errors in death sentences

Cody James Martinez v. Thornell

Updated Nov 12, 2026

In brief

Where it stands
Dismissed

Petition denied.

What it’s about
Cody James Martinez asked the Supreme Court to review his claims that Arizona used the wrong test to decide whether trial counsel’s errors harmed him and that he should be allowed to appeal the denial of sentencing relief on the kidnapping count after receiving relief on the murder count based on overlapping attorney-error findings.
Who it affects
Martinez gets no Supreme Court ruling on either claim, and the Court did not decide whether he is entitled to relief.

Summary: written with AI from the case record.

Illustration for Cody James Martinez, Petitioner v. Ryan Thornell, Director, Arizona Department of Corrections, Rehabilitation and Reentry, et al.
Conceptual illustration · AI-generated

What it's about

The Court refused to hear the case (denied review) and did not decide either issue.

The trial court granted Martinez sentencing relief on the murder count but not the kidnapping count; Martinez argued that overlapping findings about his lawyer’s errors should also support an appeal on kidnapping.

Question presented

1. Whether Arizona, having refused Strickland cumulative error determination of prejudice, is entitled to AEDPA deference for a decision made using the wrong standard? 2. Whether Mr. Martinez has made a substantial showing of the denial of a constitutional right to support a certificate of appealability where the trial court granted sentencing relief as to Count 1 (Murder) but denied relief as to Count 2 (Kidnapping) even though its determination as to Count 1 (Murder) was based on a determination of ineffective assistance of trial counsel as to many of the same aggravating factors that resulted in the aggravated sentence as to Count 2 (Kidnapping)?

Documents

1

Docket activity

6
  • New analysis added

    Nov 12, 2026 · Court records

  • AI analysis generated: Case Briefing

    Nov 12, 2026 · Generated

  • AI analysis generated: Decision Record

    Nov 12, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Nov 12, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Nov 12, 2026 · Court records

Show 1 more
  • Brief added: Petition

    Jul 18, 2026 · Court records

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Nov 12, 2026Methodology

Court records and filings

Reporting and analysis