Fairfield police arrest man who allegedly shot, killed brother

Published August 23, 2026 12:16 PM PDT

FILE PHOTO-Police tape secures a crime scene. (Photo by JOHANNES EISELE/AFP via Getty Images)

Fairfield police on Sunday confirmed they arrested a 56-year-old man who allegedly called authorities to report he had fatally shot his own brother.

What we know:

The Fairfield Police Department said in a statement that Christopher Cullen was arrested on suspicion of murder in connection with the Saturday shooting.

Officers were called about 4:55 p.m. Saturday by a man – later identified as Cullen – who claimed he had shot his brother and believed he was dead, according to a department statement.

Emergency responders went to the scene on Westphalian Drive in the Cordelia neighborhood, and police detained Cullen without incident.

Cullen’s brother was taken to a hospital with a gunshot wound, where he later died.

What we don't know:

The brother’s name was not released.

A motive for the shooting was not known.

The Source: Fairfield Police Department, previous KTVU reporting

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