Improper lane usage - that's what got 34-year-old Dallas man Rayshune Henry pulled over on Interstate 20 outside Bossier City in the first place.
Louisiana State Police Troopers then discovered there was a warrant for Henry's arrest for violation of his parole, after an arrest in Bossier City back in April.
But things changed, quickly.
Authorities say Henry concealed his hands, and refused to exit his Chevrolet Impala.
"They more experience and training we have will give us the best tools to make a good decision," says LSP Trooper Matt Harris.
That training is what troopers turned to when they say Henry actively resisted as officers attempted to remove him from the vehicle, even after Henry was tased twice.
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But authorities say Henry tried to run into traffic, and they had to act in the interest of his safety and their own.
"You never know what kind of day that person's having, you never know whether they just killed somebody. The Oklahoma City bomober was stopped for a broken tail light. You never know what can happen when you make a traffic stop."
Harris says it's for that reason that officers undergo constant training for nearly every scenario so reaction becomes muscle memory.
"You can actually look and as a situation is happening, you'll know whether to go for that taser or that gun."
But this scenario took a turn when police say Henry began struggling to breathe and officers called for EMS.
LSP troopers rendered first aid until EMS arrived, who then discovered suspected narcotics lodged deep in the back of his throat.
Harris says if a person is under the influence, the situation can escalate danerously.
"You don't want to come at them real aggressive because once they get set off, they're going to be out of their minds strong."
Harris says their training teaches them to try and keep someone who's under the influence calm rather than agitating them.
Henry was pronounced dead at a local hospital on Saturday morning.
It's not clear yet exactly what was in the clear plastic bag inside his throat, though it's described as a white substance.
The Louisiana State Police Bureau of Investigations is handling the investigation into this incident.
