Fresno police arrested Estevan Diaz (pictured), 23, on Friday, December 19, 2025, for the murder of 24-year-old Faustino Mancilla, who was shot and killed on Oct. 29, 2025, in the area of Poppy Avenue and California Avenue. (Fresno PD)
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Fresno police are investigating a homicide after a 24-year-old man was fatally shot last fall in southwest Fresno.
Officers responded around 6:45 p.m. on Wednesday, Oct. 29, to the area of Poppy and California avenues, where they found an adult male suffering from an apparent gunshot wound, according to the Fresno Police Department.
Despite life-saving efforts, the victim, identified as Faustino Mancilla, was pronounced dead at the scene.

Homicide detectives later identified Estevan Diaz, 23, as the suspect. Diaz was arrested Friday and booked into the Fresno County Jail on a murder charge.
Got a Tip?
Police said the investigation remains active and are asking anyone with information to contact Fresno Police homicide detectives A. Lopez at (559) 621-2449 or R. Montoya at (559) 621-2443. Anonymous tips can also be made through Crime Stoppers at (559) 498-STOP (7867).
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Connect with Anthony W. Haddad on social media. Got a tip? Send an email.




