In a significant ruling, the Ninth Circuit Court of Appeals has affirmed in part and reversed in part the denial of William Castillo's appeal concerning his death penalty conviction for the murder of Isabelle Berndt. The court's decision, issued on October 2, 2026, affects Castillo's ongoing legal battle against his conviction and sentence, which has been a source of contention since his trial in 1996.
The case, documented under docket number 19-99003, highlights issues surrounding procedural defaults and the effectiveness of legal counsel. The court's ruling is crucial as it determines the future of Castillo's legal options and the potential for further proceedings in his case.
Background
William Castillo was convicted in 1996 for the murder of 86-year-old Isabelle Berndt in Nevada. Following a jury trial, he received a death sentence. The Nevada Supreme Court upheld Castillo's conviction and sentence on direct appeal, and he was denied state post-conviction relief. Castillo's legal troubles have persisted for years, leading him to file a federal habeas corpus petition in 2004, which has faced numerous challenges related to timeliness and procedural defaults.
Castillo's case reached the Ninth Circuit after the district court denied his second amended petition for a writ of habeas corpus. The district court had previously certified four claims for appeal and sought a certificate of appealability for two additional claims. These claims centered on the timeliness of Castillo's petitions and the effectiveness of his legal counsel during his trial and post-conviction proceedings.
The Ruling
The Ninth Circuit, in its ruling, affirmed the district court's judgment on most issues but reversed its decision regarding Castillo's procedural default of his trial ineffective assistance of counsel claims. The court ruled that Castillo's case falls within a narrow class of cases where attorney error in state post-conviction relief proceedings can excuse a defendant's state law procedural default.
The court stated, "The panel held that this case is controlled by Hogan v. Bean, which held that where state law requires trial ineffective assistance claims to be brought in state PCR proceedings in the first instance, a claim of ineffective state PCR counsel is akin to a claim of ineffective direct-appeal counsel."
Judge Salvador Mendoza, Jr., along with Judges Johnnie B. Rawlinson and Kenneth K. Lee, comprised the panel that issued the opinion. The court emphasized that the district court is best positioned to evaluate Castillo's claims and remanded the two surviving claims for further proceedings.
Impact
This ruling has significant implications for Castillo's ongoing legal battle. By reversing the district court's decision on procedural default, the Ninth Circuit opens the door for Castillo to present his claims regarding ineffective assistance of counsel in state post-conviction relief proceedings. This could potentially lead to a re-evaluation of his conviction and sentence.
The ruling also reinforces the importance of effective legal representation in capital cases. It highlights the court's recognition that failures by counsel in initial-review collateral proceedings can have lasting repercussions on a defendant's ability to seek justice. As a result, this decision may set a precedent for future cases involving claims of ineffective assistance of counsel in similar circumstances.
What's Next
Following the Ninth Circuit's ruling, Castillo's case will return to the district court for further proceedings on the claims that survived the timeliness issue. It remains to be seen whether Castillo will pursue additional appeals or if there are related cases pending that could influence the outcome of his situation.