07-08-2025
Sonoma County sheriff's office seeks public's help finding 1996 homicide suspect
The Sonoma County Sheriff's Office is asking the public's help in its search for the suspect in a 1996 homicide, in which a man was found fatally shot in a shallow grave, a case that went cold.
Antonio Bravo Marquez is suspected of killing Alfonso Reyes Martinez, whose body was found in a grave near the Alexander Valley Bridge, north of Healdsburg, on May 20, 1996., the sheriff's office said. Marquez, known also as Antiono Marquez Bravo or Antonio Brava, remains to be found and likely fled to Fresno or Mexico, according to the sheriff's office.
The sheriff's office described Marquez as 61, with a height of 5'3'', medium build, short black hair, brown eyes and possibly a light mustache. At the time of the killing, Marquez was employed as a vineyard laborer and lived in an encampment near the intersection of Highway 128 and Alexander Valley Road, the sheriff's office said. Marquez was known to drive a white or tan 1973 Ford Maverick that featured a brown vinyl top, according to the sheriff's office.
One man was convicted as an accessory in the killing, but Marquez 'vanished,' the sheriff's office said. 'If you know something — even if it seems small — now is the time to come forward,' said the sheriff's office in a statement.
People with information about the shooting can contact the Sonoma County Sheriff's Office's cold case unit at (707) 565-2727.
