A man associated with the Hells Angels motorcycle club was found guilty Monday of vehicle theft, Ventura County prosecutors said. Aaron McIntosh, 39, of Ventura stole the motorcycle of a former Hells Angels member from the backyard of his home, authorities said. He committed the theft on behalf of the Hells Angels to punish the former member, authorities said. McIntosh also was convicted of a count of committing a criminal felony while participating in a criminal street gang, authorities said. McIntosh faces a maximum sentence of 13 years and eight months in prison. A sentencing date has yet to be set.