after the police chiefm 6:ñ resigned after a scythe report from the fed that shows widespread dis department. the department of justice launched th e(y9 investigation after a white fergusun police officer shot and killed this black teenager, michael brown. the u.s. attorney general, eric holder, just a short time ago called last night's shooting of the police officer's heinous and cowardly and turn his stomach. >> this is the day punk who was trying to sow discord in anar that is trying to get its act together. >> president obama responded in a white house tweet, quoting here, violence against police is unacceptable. path to justice is one all of us must travel together. you can see the tweet there is signed b.o. the white house says that means the president wrote it himself. mike tobin is live this afternoon in ferguson.