( CNN ) Eyewitness video showing white North Charleston police Officer Michael Slager shooting to death an unarmed black man has exposed discrepancies in the reports of the first officers on the scene . Slager has been fired and charged with murder in the death of 50-year-old Walter Scott . A bystander 's cell phone video , which began after an alleged struggle on the ground between Slager and Scott , shows the five-year police veteran shooting at Scott eight times as Scott runs away . Scott was hit five times . If words were exchanged between the men , they 're are not audible on the tape . It 's unclear what happened before Scott ran , or why he ran . The officer initially said that he used a Taser on Scott , who , Slager said , tried to take the weapon . Before Slager opens fire , the video shows a dark object falling behind Scott and hitting the ground . It 's unclear whether that is the Taser . Later in the video , when Slager approaches Scott 's body , Slager appears to drop a dark object near Scott . Slager is seen in the video handcuffing Scott after the shooting . Witness : I nearly erased shooting video out of fear . Feidin Santana , the witness who recorded the video , said he did n't see Scott grab Slager 's Taser . His account contradicts what Slager told dispatchers . In two interviews with NBC , Santana said that he was walking to his job in North Charleston on Saturday morning when he saw Slager chase Scott , who had been pulled over for a broken taillight . Santana told NBC 's Lester Holt on Wednesday that he saw the two men struggling on the ground . `` They were down on the ( ground ) ... before I started recording , '' Santana said . `` I remember the police ( officer ) had control of the situation . He had control of Scott . '' Santana said he heard the sound of a Taser being used . He believed Scott was trying to get away from it . But Scott never got the Taser or used it on the officer , Santana told NBC . Who was Walter Scott ? A North Charleston Police report included brief statements from eight police officers , but not Slager . One officer , identified as Sgt . J. Gann , said in the report he was conducting a separate traffic stop about 9:30 a.m. Saturday when he heard -- apparently via radio -- Slager say he was `` in foot pursuit '' of another motorist . Gann said that while driving to the officer 's location , `` Slager advised that he deployed his Taser and ( requested ) back up units . '' Seconds later , Gann reported , he heard Slager tell a dispatcher , `` Shots fired and the subject is down . He took my Taser . '' Hours after the shooting , The Post and Courier of Charleston quoted a statement from police spokesman Spencer Pryor , who said Slager attempted to use his Taser to stop a fleeing suspect . The men struggled over the device , with the suspect taking the Taser and attempting to use it against Slager , the newspaper reported . In the police report , another officer , J. Banias , said he was heading to the scene about 10 minutes after the initial call . Slager asked him to `` secure his vehicle at the site of the traffic stop . '' Banias said he spoke to a passenger in the car Scott was driving . `` The passenger was ... detained and placed in the back seat of my vehicle , '' the officer reported . The passenger 's identity was not given in the report , but the officer said in the report that the passenger was detained . Scott family spokesman Ryan Julison confirmed to CNN that a man was with Scott and said he is not related to the family . The family declined to provide any more information . A timeline of events . The North Charleston Police Department is not providing additional information , citing an ongoing investigation of Scott 's killing by the independent South Carolina Law Enforcement Division . Gann said when he arrived at the shooting scene , an officer identified only as Habersham `` was administering first aid '' to Scott . `` I exited my vehicle and assisted Officer Habersham with first aid and CPR to the driver , '' Gann said in the report . `` We continued to perform first aid and CPR until EMS arrived ... When EMS and first responders arrived , EMS took care over providing care to the driver , who was pronounced deceased a short time later . '' Habersham , in his account , did not mention performing CPR . `` I attempted to render aid to the victim by applying pressure to the gunshot wounds and ( directing ) the best route for EMS and fire to get to the victim faster , '' he said in the report . An officer identified as Sgt . Webb said that he requested an ambulance . Webb said that at 9:41 a.m. he saw Habersham `` administering chest compression to the defendant . '' North Charleston Police Chief Eddie Driggers was asked at a news conference this week whether CPR was performed on Scott . `` I do not know . I was told that life-saving ... that they tried to save his life , '' Driggers said . North Charleston Mayor Keith Summey added that not every North Charleston police officer is CPR certified . What we know about Officer Slager .
More questions than answers emerge in controversial S.C. police shooting . The case has raised concerns about the use of deadly force by police, particularly against black suspects.