the harder unfolding after a pack high school event in richmond, virginia, stepfather and son shot dead. 36 road renzo smith an 18-year-old shawn jackson, he just walked to the stage at graduation, murder and his cap and gown. i didn t know sean but i shook his hand and wished him congratulations about 20 minutes before he died. reporter: tonight please have the alleged gunman in custody. 19-year-old ameri ty-john pollard, now charged with two counts of second-degree murder. authorities say pollard targeted jackson, the two involved in an unspecified year-long dispute and after exchanging words outside the theater, police say the suspect got a gun from his car, came back and open fire. essentially was chaos for the first several minutes after this event. reporter: five innocent people also shot and wounded in a 9-year-old girl hit by a car in the cast. police say she s jackson s little sister. stephanie rizzi was at the graduation and saw the young