Mr. Barack Obama, please support the investigaton of the shooting of a black, homeless man in the US

Yesterday evening a good friend of mine was the first one who shared the video that some accidentual audience took from 6 policemen shooting a black, homeless man in the USA, now it´s unclear if that man tried to get one policeman´s weapon, but whoever watched the video could see that man´s been lying on the floor defenselessly when the 1st of 5 shots felll!!! Please, Mr. Obama, support the investigation of that horrible cause and the prosecution of those cowards, er policemen if they should really have killed that man for no reason. Oh, in the meantime I watched the video 2 more times, and as far as I saw, the homeless man´s really been lying on the floor defenselessly, some whitnessed the policemen had used electroshocks on him before the shots fell!!!