Coroners remove the body of a stabbing victim from the Casa De Portola apartment complex in Garden Grove. (Irfan Khan / Los Angeles Times )
Police investigators work at the Casa De Portola apartment complex in Garden Grove where the first two victims in a stabbing rampage were attacked Wednesday. (Irfan Khan / Los Angeles Times)
Police investigators work at the Casa De Portola apartment complex in Garden Grove, where two people were fatally stabbed. (Irfan Khan / Los Angeles Times)
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Garden Grove Police Det. Steven Heine at the Casa De Portola apartment complex. (Irfan Khan / Los Angeles Times)
Twin sisters, reportedly the daughters of a woman who was stabbed at a business in Garden Grove on Wednesday, leave the Casa De Portola apartment complex. (Irfan Khan / Los Angeles Times)
Balloons tied to a light post at the Garden Grove apartment complex where two people were fatally stabbed. (Irfan Khan / Los Angeles Times)

Police were still at work Wednesday night, hours after the stabbing rampage ended outside a 7-Eleven store in Santa Ana. (Genaro Molina / Los Angeles Times)
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The scene at a gas station in Garden Grove, where a customer was stabbed in the back and his nose nearly severed, police say. (Genaro Molina / Los Angeles Times)

A photo of the stabbing suspect, identified Zachary Castaneda, at Garden Grove police headquarters. (Irfan Khan / Los Angeles Times)