"The episode was captured on FBI aerial surveillance video. Two days after the shooting, FBI officials released a 26-minute segment of the video to quell rumors about how Finicum died. But the video continues for another hour, law enforcement sources said, capturing the subsequent actions of the FBI agents.
The police reports show that investigators, who saw the full FBI video the day after the shooting, suspected something was amiss. They searched two FBI pickups used at the roadblock, looking for bullet casings, according to a detective's report. They didn't find any.
In the days following, detectives asked at least three state troopers what bullet casings they had seen after the shooting and whether they had seen anyone pick them up.
One trooper - identified only as Officer 5 - told investigators that he saw two rifle casings in the area of the roadblock. He described them both as copper-colored.
An investigator asked him, according to the interview transcript: "Did you happen to see anybody, um, picking anything up? Like, specifically, the rifle brass?"
The trooper responded: "No."
The color of the casings could be a crucial detail. Troopers use state-issued ammunition that comes in silver-colored casings."
"Police reports document that detectives didn't arrive at the roadblock to collect evidence until just before 7 p.m. on the day of the shooting. That was nearly 90 minutes after the FBI video showed the agents looking around where they had been posted. Evidence logs don't list any copper casings found at the scene.
Forensic specialists from the Oregon State Police conducted a ballistic trajectory analysis to determine the path of the bullet. Their calculations produced an estimate that traced the path back toward where two FBI agents were standing at the time the shot was fired. They pinned down that instant by synchronizing the moment when the Cox video recorded the round striking the truck with the overhead FBI video showing the location of all the officers.
The investigators last week released an image of the trajectory cone for the hole in the truck roof. The Oregonian/OregonLive independently applied that cone to the FBI's overhead video and the Cox video at the time the shot struck the roof. The resulting image placed one FBI agent in the trajectory roughly 15 feet from Finicum's pickup.
Investigators, using precise measurements of vehicle locations and law enforcement positions, concluded that the first agent was the one who fired into Finicum's roof."
Bullet casings disappear from LaVoy Finicum shooting scene