Disturbing New Details Emerge in Illegal Immigrant’s Alleged Murder of Elderly California Man
Ben Chapman, New York Post, August 13, 2026
A criminal illegal migrant charged with murder for allegedly butchering a Bay Area retiree to death in the victim’s front yard is accused of committing the brutal crime during a botched burglary, court documents show.
Marcos Iriarte-Valdez, 36 — a Venezuelan national who also holds citizenship in Spain — faces life in prison for the fatal stabbing of Todd Stewart, 68, just outside Stewart’s Martinez home last week.
Iriarte-Valdez had been released from jail only the day before the alleged killing.
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Prosecutors say Iriarte-Valdez stabbed Stewart to death with a knife while committing a residential burglary at approximately 5:10 pm on August 6. The suspect was hit with three additional enhancements to the murder charge related to his alleged use of a knife during a burglary, and his being out on conditional release at the time.
Surveillance footage that captured the horrifying attack appears to show Iriarte-Valdez pulling up to Stewart’s house in a Cadillac SUV wearing dark jeans, a gray shirt and a protective vest.
Iriarte-Valdez, who also lived in Martinez, is allegedly shown sitting in his vehicle for a while before getting out and launching a brutal knife attack on Stewart.
The men can be seen grappling on a sidewalk and between two parked cars before Stewart stumbles to the ground.
Iriarte-Valdez allegedly continued stabbing Stewart after he fell, as the victim howls in agony.
Stewart was pronounced dead at the scene despite medics’ attempts to save his life.
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