The 33-year-old suspect, Zachary Castañeda, from Garden Grove, was taken into custody as he emerged from a 7-Eleven convenience shop in Santa Ana, southeast of Los Angeles.[8][9] He dropped a knife along with a handgun that he had taken from a guard as he emerged from the 7-Eleven.[8][6][10] At the time of his arrest, the suspect was out of jail on bail for drug and concealed knife charges.[11]