On the morning of April 10, 2021, 39-year-old Juan Miguel Vasquez Serrano, identified in records also as Miguel Vasquez, was shot and killed in Oakland, California. What began as an apparently random killing in Oakland later proved to be the opening incident in a pattern: ballistics testing linked the firearm used in his slaying to several fatal shootings in Stockton, suggesting a single shooter was responsible for multiple deaths across jurisdictions.

That connection prompted collaboration between Oakland and Stockton investigators. A suspect, 43-year-old Wesley Brownlee of Stockton, was arrested in October 2022 after tips and surveillance officers say placed him in dark clothing and armed while allegedly seeking another victim. The San Joaquin County District Attorney’s Office consolidated the related cases and charged Brownlee with multiple counts of murder, including the killing of Vasquez Serrano, plus one count of attempted murder. Legal proceedings have been delayed by competency hearings and the prosecution has announced an intent to seek the death penalty.

What details about Miguel Vasquez Serrano’s life or movements that night might help explain how he came to be targeted, or who saw him in Oakland before the shooting?