Antioch welfare check leads to arrest of man with decomposing bodies of mother, half-brother

By Lt D. Bittner #3252, Antioch Police Investigations Bureau

On October 16th, at 4:10 pm, Antioch police officers responded to 2600 Fairmont Lane for a welfare check. Shortly after arrival, they discovered the bodies of a 39-year-old man and a 65-year-old woman in advanced stages of decomposition. Officers contacted the suspect, 46-year-old Mark Taylor, as he was attempting to leave the home. Taylor was later discovered to be the son of the dead woman and the half-brother of the male victim.

The Antioch Police Department’s Investigations Bureau, consisting of Crime Scene Investigators and detectives with the Violent Crimes Unit, took over the investigation. Investigators determined that Taylor murdered his mother and half-brother. Taylor was placed under arrest for two counts of murder and was booked at Contra Costa County Detention Facility in Martinez.

This crime is still under investigation and no further information will be released at this time. Additional inquiries, tips or other information can be directed to Antioch Police Detective Adam Duffy at (925) 779-6884 or by email aduffy@antiochca.gov.

UPDATE 1: According to the Contra Costa County Sheriff’s Office, Monroe is white, his birthdate is March 10, 1978, and his middle name is Monroe. But no other additional information has yet been provided

Please check back later for any additional updates.

Allen D. Payton contributed to this report.


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APD & Crime Scene Do Not Cross – Dbl Homicide


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