Michael Jackson and Kenneth Williams make their first public appearance Tuesday . Michael Pendleton , 15 , was shot to death in Chicago . Escalating gang violence has raised Chicago 's murder tally for 2012 to 500 , up 50 from 2011 , officials said . Pendleton was at a concert before the inauguration of Barack Obama .
Michael Jackson and Kenneth Williams make their first public appearance Tuesday . Michael Pendleton , 15 , was shot to death in Chicago . Pendleton was at a concert before the inauguration of Barack Obama .