propofol concentration in urine was 0.15 and urine bladder 550 , it is very very low percentage , it means Murray probably gave mj ONE SHOT of propofol during the last 12 hours of his life . High concentration of propofol in blood does not mean he was given a lethal dose , it means MJ died immediatley , because normaly the concentration drops within a minute or two , but 4.1 is HIGH , really HIGH and it fits within the range of blood concentration when someone's under a major procedure and not just sedation . Based on propofol concentration in his blood MJ probably died within seconds .
the oxygen tank was empty , GREAT .
if they had a motive , he would have been charged with FIRST DEGREE MURDER .