State v. Nolan — affirms murder conviction over Fifth Amendment witness dispute

Case
State of Arizona v. Joseph Michael Nolan
Court
Arizona Court of Appeals, Division Two
Judge
Vásquez (appointment info not available)
Date Decided
July 23, 2026
Docket No.
2 CA-CR 2025-0088
Topics
Fifth Amendment, Witness Testimony, Prosecutorial Misconduct, Sixth Amendment
Source
Read the full opinion

Background

Joseph Nolan was convicted of first-degree murder and other offenses stemming from a botched robbery in June 2022. Nolan and five accomplices lured J.S. to a park to rob him under the pretense of a drug deal. When J.S. and his driver, M.D., arrived, the group, armed with firearms supplied by Nolan, ambushed their vehicle. As M.D. attempted to speed away, the attackers fired multiple shots into the car. J.S. was struck by a single gunshot to the head and later died.

Investigators identified Nolan and his co-defendants using park surveillance footage and a confession from one participant. Nolan was arrested while attempting to flee to Mexico. While his five co-defendants all accepted plea agreements, Nolan proceeded to a jury trial, arguing he acted in self-defense. He testified that he saw a rifle being pointed from the victim’s car before he opened fire. The jury convicted Nolan, and the court sentenced him to natural life in prison.

The Court’s Holding

Nolan appealed, arguing the trial court abused its discretion by precluding him from calling two former co-defendants, his brother Drake Nolan and Zachary Connor, as defense witnesses. Nolan claimed they would corroborate his self-defense story by testifying they saw a gun in the victims’ car. The trial court had found that both witnesses could properly invoke their Fifth Amendment rights against self-incrimination. The Court of Appeals affirmed the convictions, finding no error in the trial court’s decision.

The appellate court held that a trial judge with extensive knowledge of a case can excuse a witness entirely if all relevant questions could lead to self-incrimination. The court found that Nolan had only speculated about Connor’s potential testimony, failing to make the required showing that it would be favorable to his defense. As for Drake Nolan, the court agreed his testimony would have been material, but found he had a “real and appreciable” risk of self-incrimination. Drake’s post-conviction relief proceeding was still pending, and testifying could have exposed him to perjury charges or risked the withdrawal of his plea agreement due to inconsistencies with prior statements. The court also noted Nolan failed to re-raise the issue at trial when the judge gave him an explicit opportunity to do so.

Finally, the court rejected Nolan’s claim that the state committed misconduct or should have been ordered to grant Drake immunity. The court affirmed that prosecutors have discretion over immunity grants and found no evidence that the state had improperly interfered with Drake’s choice to testify. The state’s communication with Drake’s attorney about the potential legal dangers of testifying, including perjury, was a legitimate warning, not a due process violation.

Key Takeaways

  • A defendant’s Sixth Amendment right to call witnesses is not absolute and can be overridden by a witness’s valid assertion of their Fifth Amendment privilege against self-incrimination.
  • A witness who has already been convicted and sentenced may still have a valid fear of self-incrimination and invoke the Fifth Amendment, especially if post-conviction proceedings are pending or their testimony could lead to perjury charges.
  • Courts do not have inherent authority to grant immunity to a defense witness; this power rests with the prosecution, and a refusal to grant immunity only raises due process concerns if it is part of a deliberate intent to distort the judicial process.

Why It Matters

This decision reinforces the high bar a defendant must clear to compel testimony from a witness who claims the Fifth Amendment privilege. It highlights the significant deference courts give to a witness’s assertion of the right against self-incrimination, particularly when their own legal case is not fully resolved. For defense attorneys, this case underscores the need to make a concrete, plausible showing of how a witness’s testimony would be favorable, as mere speculation is insufficient to challenge a Fifth Amendment invocation.

The ruling also affirms the broad discretion prosecutors hold in granting immunity. The court makes clear that absent proof of substantial interference or a deliberate attempt to hide exculpatory evidence, the government’s decision to not grant immunity to a defense witness will almost certainly be upheld. This solidifies the existing legal framework that balances a defendant’s right to present a defense with the constitutional rights of witnesses and the institutional role of the prosecution.

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