Johnny Cash Castaneda Jr., 25, known as Johnny Ca$h and Tha Fast Gunna, was shot multiple times in the parking lot of the Sereno Village Apartments in Vallejo, California on March 29, 2007. He was found with gunshot wounds, taken to John Muir Medical Center in Walnut Creek, placed on life support, and later died after being removed from life support.

Castaneda was part of the Bay Area hyphy movement, signed to Thizz Entertainment and described as a rising artist and a protege of the late Mac Dre. His killing was recorded as the sixth homicide in Vallejo that year. Vallejo police conducted an extensive investigation, considered various motives and possible links to other incidents, but reported no conclusive evidence connecting his death to the broader pattern of violence among artists associated with Mac Dre.

No arrests have been announced and no suspects or charges were identified. If anyone has information about the shooting or knew Johnny, please come forward to help the investigation.