first aid to walter scott, but several minutes pass on this video, and no officers are seen providing first aid even as ambulance sire revenue heard in the distance -- sirens are heard in the distance. even officer slager's boss, the department's police chief, says murder charges are appropriate in this shooting. >> the investigation revealed what it revealed, and we are obligated to do what the law dictates if the investigation so revealed that. it appears that through this videotape that's where it fell. >> reporter: tuesday night, walter scott's family reacted to the news that the officer had been charged with murder. >> we can't get my brother back. my family is in deep mourning for that. through the process of justice has been served, i -- i don't think that all bad cops, but