Full Breakdown
Murder of Todd Stewart Highlights Sanctuary Policy Debate in Contra Costa County
8/14/2026, 4:35:46 AM
Core Event
On August 6, 2026, 36-year-old Marcos Eduardo Iriarte-Valdez stabbed 68-year-old Todd Stewart to death during a residential burglary in Martinez, California. Prosecutors say the killing involved a knife and occurred while Iriarte-Valdez was out on conditional release for separate burglary charges. He was arrested the next day, arraigned without bail, and pleaded not guilty.
Background & Context
Iriarte-Valdez entered the United States in 2007 and later obtained Spanish citizenship. He was classified by the Department of Homeland Security (DHS) as an “illegal alien.” A California judge—appointed by Governor Gavin Newsom—released him on his own recognizance a day before the stabbing, prompting criticism from federal officials who argue sanctuary policies hinder ICE detainers.
Timeline
- April 29 – Arrested on two residential-burglary charges in Orinda.
- September 2025 – DHS placed an immigration detainer on him.
- August 6, 2026 – Murder of Todd Stewart at ~5:10 p.m.
- August 11, 2026 – Martinez Police presented the case to the Contra Costa County District Attorney’s Office.
- August 12, 2026 – County issued a news-flash announcing the murder charge and special-circumstance allegations.
- September 1 – Deadline for his next court appearance.
- September 9 – Scheduled hearing before Judge Michael Nieto in Richmond.
Data & Statistics
- Charges: one count of murder plus three enhancements (burglary-related killing, use of a knife, commission while on conditional release).
- Additional offenses include inflicting corporal injury on a spouse, three counts of burglary, receiving stolen property, trespassing, loitering, and violation of a protective order.
- Bail was initially set at $1.1 million before the judge ordered detention without bail.
Official Statements & Responses
- Diana Crofts-Pelayo, chief deputy director of communications for Governor Newsom, said California “takes public safety seriously” and that state law does not prevent federal immigration enforcement.
- District Attorney Diana Becton pledged to pursue the case “with diligence and integrity” and expressed sympathy for the victim’s family.
- Judge David Goldstein, presiding over the arraignment, called Iriarte-Valdez a “risk to public safety” and ordered detention without bail.
Criticism & Opposition
- Tom Homan, DHS’s border czar, argued that sanctuary jurisdictions “refuse to work with ICE” and that the release exemplifies the consequences of such policies.
Verbatim Quotes
- “Our office will pursue this case with diligence and integrity to hold Iriarte-Valdez fully accountable under the law for this devastating act of violence,” — Diana Becton
Conflicting Reports & Gaps
- Sources differ on the identity of the judge who released Iriarte-Valdez: some name Judge Nichelle Holmes, others refer only to “a judge” appointed by the governor.
- DHS cites a September 2025 detainer, but other outlets do not detail when the detainer was filed or why the suspect’s status shifted from lawful admission to “illegal alien.”
- The legal reasoning for granting release the day before the murder remains unclear; the district attorney’s office objected to electronic monitoring three times without public explanation.
Why It Matters / Impact
The case has become a flashpoint in the national debate over sanctuary policies. Federal officials cite the murder as evidence that non-cooperation with ICE endangers public safety, while California officials stress that state law does not bar federal enforcement and that the release followed standard judicial discretion. The September 9 hearing could shape future interactions between local courts and federal immigration authorities in California and other sanctuary jurisdictions.
