43 F.4th 942
9th Cir.2022Background
- Montiel was convicted (1979) of robbery and first-degree murder and, after a penalty-phase retrial, sentenced to death (1986). His conviction and sentence were affirmed on direct appeal; the California Supreme Court later summarily denied his state habeas petition (1996).
- Montiel contends his 1986 penalty-phase counsel, Robert Birchfield, was ineffective under Strickland for multiple omissions in presenting mitigation and challenging prosecution evidence related to PCP intoxication and mental health.
- At trial the State’s expert (Dr. Ronald Siegel) opined Montiel was intoxicated but retained capacity for specific intent; defense experts testified severe PCP intoxication and long-term substance exposure impaired Montiel’s judgment and capacity to premeditate.
- The Ninth Circuit expanded Montiel’s certificate of appealability to treat counsel’s alleged errors collectively (per Browning) and reviewed the California Supreme Court’s summary merits denial under AEDPA’s deferential standard.
- The court assumed deficient performance for purposes of argument but held that, under AEDPA and Strickland prejudice analysis, the state court could reasonably conclude Montiel failed to show a substantial likelihood of a different penalty verdict given the existing aggravation and mitigation evidence.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Failure to present independent psychopharmacologist showing PCP prevented specific intent | Montiel: counsel should have called a psychopharmacologist to show intoxication negated mens rea and supported factor (h) mitigation | State: jury heard expert testimony (Siegel, Nuernberger) about PCP effects; added expert would be cumulative; aggravating evidence strong | Court: Even assuming deficient performance, no prejudice shown under AEDPA—additional expert would likely be cumulative and not produce substantial probability of different result |
| Failure to adequately prepare Dr. Nuernberger to testify about mental health | Montiel: counsel did not prepare the psychiatrist, weakening the mitigation testimony | State: Nuernberger did testify to severe intoxication, and counsel elicited useful concessions from prosecution experts; preparation not shown to cause prejudice | Court: Assumed deficiency but held no prejudice; state court reasonably rejected claim |
| Failure to investigate/challenge Dr. Siegel’s reliance on Palacio’s jail-confession testimony | Montiel: Birchfield should have impeached Palacio or attacked Siegel’s reliance on Palacio’s inaccurate narrative | State: Jury was exposed to evidence undermining Palacio’s account (money found) and counsel elicited favorable evidence showing flaws; Siegel relied on multiple bases | Court: No prejudice—Palacio was only one factor and jury aware of inconsistencies; challenging it would likely not have changed outcome |
| Failure to investigate/present psychosocial and family history (background, neuropsych deficits, pesticide exposure) | Montiel: counsel failed to develop powerful mitigating background and neuropsych evidence that could humanize him and show impaired judgment | State: Trial record already included substantial mitigation and intoxication evidence; additional material would not overcome aggravation | Court: Even crediting new background evidence as non-cumulative, under AEDPA a reasonable jurist could conclude it would not create substantial likelihood of a life sentence rather than death |
Key Cases Cited
- Strickland v. Washington, 466 U.S. 668 (1984) (two-prong ineffective-assistance test: performance and prejudice)
- Harrington v. Richter, 562 U.S. 86 (2011) (AEDPA: state-court decision must be objectively unreasonable to grant relief)
- Cullen v. Pinholster, 563 U.S. 170 (2011) (AEDPA deference applies to summary denials; review focuses on whether state court reasonably applied federal law)
- Browning v. Baker, 875 F.3d 444 (9th Cir. 2017) (counsel’s performance must be considered in toto for Strickland review)
- Wiggins v. Smith, 539 U.S. 510 (2003) (duty to investigate mitigating evidence; prejudice inquiry requires reweighing aggravation vs total mitigation)
- Rompilla v. Beard, 545 U.S. 374 (2005) (counsel’s obligation to investigate readily available mitigating evidence)
- Porter v. McCollum, 558 U.S. 30 (2009) (prejudice under AEDPA where mitigation practically absent at trial)
- Wilson v. Sellers, 138 S. Ct. 1188 (2018) (look-through rule: apply AEDPA to last reasoned state decision)
- Ylst v. Nunnemaker, 501 U.S. 797 (1991) (procedural framework for reviewing unexplained state-court denials)
- Cannedy v. Adams, 706 F.3d 1148 (9th Cir. 2013) (AEDPA applies to California Supreme Court summary denials)
- Sully v. Ayers, 725 F.3d 1057 (9th Cir. 2013) (AEDPA standards in Strickland claims; evidentiary hearing not required to trigger §2254(d) review)