Friends of the Roseville Galleria suspect, 23-year-old Alex Piggee, say he was a nice guy who started acting crazy.

He had reportedly been posting angry status updates on his Facebook page in the last few weeks. One friend said she saw about five or six angry posts every hour.Piggee last lived in a homeless shelter.

Friends also say Pigee became angry and unstable after he started taking Oxycontin.

He worked at Ikea, and was reportedly fired from there.

According to his Facebook page, Piggee worked at In-N-Out in West Sacramento and went to college in the Los Rios District for nursing and dental hygiene. FOX40 will continue to bring you more information on this suspect as it becomes available.