he was arrested in september for strong-armed robbery now accused of killing wiplson. he was shot on a path in his neighborhood. witnesses heard three shots. brendan's mother had to be held back at the scene. >> he had a future. why do you have to kill my son? over what? i don't know. >> police say the shooting was drug related. we ask if any other arrests could be made we're told it is still under investigation. >>> the rush to get home from the concert. crowds were not as large as organize nir thought there mighe but there were large crowds tonight. this picture was tweeted minutes before the show started and then the music started. we have a team covering the story tonight. we begin in the national mall with wendy. hi wendy. >> hi, wow. it was awesome out here tonight. just a spec tackle what you expected it to be. big and flashy and loud. when you get to rock your brains out on a tuesday night in washington, d.c. it was fabulous. but it is a tuesday night. it's a school night. people have to get back to work and school tomorrow so we went from you got to love it to