( CNN ) -- The onlookers yell out at police and talk passionately with each other , their anger mixed with disbelief . At one point , a siren breaks through the murmurs and the shouts . In front of them is a young black man , his body prone and alone on the pavement . It 's all in a video , captured Saturday and posted to Facebook a day later , that shows the tense , chilling scene on an otherwise placid summer day in Ferguson , Missouri . It 's broad daylight ; the grass is green ; the trees are in full bloom . One woman heard on the video recalls having been in the shower when she heard pops . Could it have been fireworks ? `` Not this time of the day , '' says a male voice , apparently from the person who shot the video on a cell phone . `` There ai n't no fireworks this early . '' Those lined up outside the yellow police tape waste no time discussing , often in expletive-laden terms , what happened . And the video dutifully records it all . It 's not clear who saw what or what exactly transpired . Regardless , a clear consensus emerges among those heard on the recording : The young man in the street -- later ID 'd as Michael Brown , an 18-year-old days away from starting classes at a technical college -- was shot dead by a Ferguson police officer . Authorities would later claim Brown attacked the officer in his car and tried to take his gun . But in the minutes after the shooting , the irate crowd on the Ferguson street comes to a different consensus , summed up by the video 's narrator : `` They just killed this ( man ) for no reason . '' As Brown 's body lay prone -- for minutes with no one , not even a police officer , in the camera 's sight -- onlookers quickly establish one key fact amongst themselves : He was n't armed . `` There is nothing ! '' a woman yells out on the video . `` Do you see a gun ? Do you see a knife ? Do you see anything that would have caused a threat to these ( expletive ) police officers ? '' `` They shot that boy because they wanted to shoot that boy . '' If the moments leading up to Brown 's shooting were frenetic , the moments afterward -- at least right around his body -- are eerily calm as captured on the continuing video . 5 things to know about Michael Brown 's shooting . For minutes , there is nothing and no one around his body . Just a young man with a white shirt flat on the street , all alone . A police officer walks by two minutes into the video , and a minute later a man in a black shirt -- who witnesses identify as a family member -- approaches . But he 's quickly guided away by officers . A short time later , a uniformed man -- perhaps a paramedic -- appears to check on Brown . Multiple officers eventually flank his body . One particularly angry , loud woman cries out : `` Where 's the ambulance ? Why does n't somebody help this man ? Why is n't somebody helping him ? '' To which a man responds , more quietly , to no one in particular : `` They know he 's dead , because they are not even trying to get him up . '' Everything about Brown is plain to see . Until 10 minutes in , when a police officer comes up to lay a small white sheet over his body . As the video ends , it is only the beginning in Ferguson . Complete coverage on the Ferguson shooting . CNN 's Chandler Friedman contributed to this report .
A video shows him outside watching tape after Michael Brown is shot dead . His body lays prone on the ground , largely alone , until a white sheet is put on it . Crowd sees he 's unarmed ; many conclude the man was a ` ` for no ... reason ''