Courtney Whitney, 45, was killed in the early hours of July 5, 2025, in Vallejo when a single round pierced the wall of her home on Admiral Callaghan Way and struck her while she was lying in bed. Officers responded around 1:36 a.m.; she was found unconscious and died later that day despite emergency care. The scene combined holiday fireworks and gunfire, and investigators initially treated the shot as an apparent stray round entering from outside. Neighbors placed a candle memorial outside the Windmill Trailer Court where she lived.

Detectives canvassed the area for vehicles and flashes and pursued witness reports about nearby corridors and trajectories. On July 18, police arrested Jose Guadalupe Castillo, 42, of Vallejo; jail records listed bail at $285,000 and prosecutors filed a murder charge, with authorities noting he is a convicted felon. Investigators continued to piece together the round’s origin and the path it took through the home.

Did anyone in Vallejo see or hear vehicles or flashes near Admiral Callaghan Way that night?