Nzazi Malonga, a longtime friend who served as head of security and helped manage the group, said the rapper-producer was found unresponsive Thursday in a hotel room in Tampa, FloridaShock G, who blended whimsical wordplay with reverence for '70s funk as leader of the off-kilter hip-hop group Digital Underground, has died. He was 57. Nzazi Malonga, a longtime friend who served as head of security and helped manage the group, said the rapper-producer was found unresponsive Thursday in a hotel room in Tampa, Florida. Malonga said the performer, born Greg Jacobs, had struggled with drug addiction for years. The group...