A couple things.
The cop discharged the Taser at Scott. If they grappled over it the thing was useless against the cop as a Taser unless the Taser was reloaded with another cartridge. Granted, it could still be used as a stun gun but only in close proximity.
The last is that ‘assault on a police officer’ is a boilerplate “contempt of cop” charge. It’s not unusual for a cop to charge someone with ‘assault’ after they hit the officer’s fist with their face.
Meaning that to me that charge is meaningless as a justification for summary execution.
As to the man fleeing the police? The facts would lend themselves to stating that fleeing the police is probably a prudent course of action in some parts of this country where the cops are liable to shoot you and then make sh*t up to justify murder.
“Its not unusual for a cop to charge someone with assault after they hit the officers fist with their face.”
First frames of video show Scott on top of Slager.
The Tasers I'm familiar with, have a 2-shot capacity (4 barbs).