A 17-year-old charged in the shooting of 49ers rookie wide receiver Ricky Pearsall was arraigned Wednesday afternoon in a San Francisco juvenile court. According to police, Pearsall was shot in the chest Saturday in San Francisco's Union Square as part of an alleged robbery attempt. Pearsall fought back, and the suspect also was wounded. Superior Court Judge Roger C. Chan ruled that the suspect, who is from Tracy, Calif., would remain in custody in San Francisco as the case proceeds. The suspect's representative, Deputy Public Defender Bob Dunlap, said of his client, "He's very sorry, genuinely, that this did happen, as is his family.