and antoine collins were assault with a dangerous weapon. put the wall in motion and the spotlight is on howard scales. metropolitan police search for scales avel he stabbed a pedestrian. >> scales is responsible in the district as he passed an individual on the sidewalk and strike him with an object which is a knife. he caused a significant laceration to the back of the neck. q: police say scales is 34 years old, 5'8", 165 pounds. he is wanted for assault with a dangerous weapon. if you have information, contact the metropolitan police department. "7 on your side" fighting back against crime. i'm q mccray. larry:h chilling spree of violent crimes. tonight he is dead after a shoot-out with police in oklahoma. michael vance live streamed his escape from police custody last week. >> there's another car. right now, -- >> this weekend they caught up with vance and he died in a shoot-out with officers. one officer was hurt in the to recover. vance wanted for carjacking and shooting three people and murdering two relatives. coming up at "abc7 news