Mr Brown was giving up in the sense of raising his arms and being subdued , Mr Walker said yesterday.The officer had his gun raised and started shooting the individual in the chest multiple times . The officer then stood over him and shot him after the victim fell wounded.Dorian Johnson offered a similar account when he said he and Mr Brown were walking home from a convenience store when a police officer told them to get out of the street and on to the footpath. Mr Johnson said they kept walking, prompting the officer to confront them.Mr Johnson said when the officer fired, he and Mr Brown ran away. He shot again, and once my friend felt that shot, he turned around and put his hands in the air, and he started to get down, he said. But the officer still approached with his weapon drawn and fired several more shots. We wasn t causing harm to nobody. We had no weapons on us at all. The FBI is looking into possible civil rights violations arising from the shooting, said a bureau spokeswoman. She said the FBI would investigate regardless of the public attention.US Attorney-General Eric Holder said the case deserved a thorough review.Nearly three dozen people were arrested following a candlelight vigil on Monday after crowds looted and burned stores, vandalised vehicles, assaulted and threatened reporters, and taunted police officers.St Louis County police spokesman Brian Schellman said 32 people were arrested for various offences, including assault, burglary and theft. Two officers suffered minor injuries, but there were no reports of civilians hurt. Several businesses were looted.Mr Brown s mother, Lesley McSpadden, said she did not understand why police did not subdue her son with a club or stun gun. She said the officer involved should be fired and prosecuted, adding: I would like to see him go to jail with the death penalty. Benjamin Crump, a family lawyer who also represented Trayvon Martin s relatives in the racially charged 2012 slaying in Florida, added: Instead of celebrating his future, they are having to plan his funeral and consult with lawyers.AP