During the evidence garage scene, Torres tells Knight that his very first car is the same make, model, and year as the one they were searching, and shows her a photo.
The car in the garage is a 1968 4-door Chevrolet Chevelle, while the one in the photo is a 1967 2-door Chevrolet Chevelle.
There are a lot of glaring mistakes about the shooting range that a real life one would not do. First of all there is no proper back stop behind the targets, there is a bit of a hill, but its too short to be fully effective; the parking lot is off to the right and behind of the car on the range, it would be easy for an inexperienced shooter to miss the car on the range and hit something or someone in the parking lot. Also a range would not have a bunch of metal objects like cars, metal piping and metal cans, would create way too high a risk of bullet ricochet.
Zip codes for Boise, Idaho begin with 837, not 839 as shown on the postmark. Also, without the last two digits, the team would not have known which post office it was from.
There is no such thing as 'bootleg ammo'. Any non-felon can load, buy or sell as much ammunition as they'd like.
However, the word 'bootleg' is commonly (but incorrectly) used to mean pirate or counterfeit products. Both are illegal copies of legitimate products. Counterfeits are designed to look exactly like the originals, right down to the packaging. Pirates are merely unauthorised copies, with no attempt to pretend to be the originals. The dealer could have been selling either.
It is absolutely not against human nature to shoot someone when they're on the ground. In a country where guns are as common as socks and their use is encouraged, shooting someone on the ground is just "kicking a man when he's down", which happens all the time.
However, that is not what Gorton said. He said "It's against nature" and this was clearly just his own attitude, not a fundamental law of human nature.
The body is lying down on the back seat of the car so the bullets would have hit the side of the face at an angle. But the bullet holes in the face appear as round holes, which would only happen if he was shot from above.
Some of the bullets Kasie says she pulled from the victim's body are bullets that have clearly never been fired. The bullets in question are jacketed hollow points and they are still completely intact, a hollow point mushrooms upon impact, even if it hits nothing but soft tissue.
Real bullets do not produce sparks when hitting glass. There is a lot of special effects on display at the shooting range at the beginning to visually enhance the scene.
When Kasie goes to test the last three slugs removed from the corpse (which look suspiciously like unfired ammunition, not bullets) she doesn't examine their striations with a microscope (as would be the usual procedure). Instead, she proceeded to fire them from a pistol into a ballistics tank. You cannot do that if they have already been fired and this would prove nothing about the unknown murder weapon.
Jessica is shown pouring a cup of coffee while talking to Victor's boss in a conference room, but then hands him a cup that is obviously empty the rest of the scene.
The victim is found curled up on the backseat like he's sleeping, the team even hypothesise that he had a drunk nap in an unfortunate place, except every single bullet wound is into his head and torso, from the side or front. There are even blood drops running down his face that show he was sitting up when shot. Meaning he lay down after being shot, the morning after he died.
Also, to have been shot in the side and the front, the dead body must have turned to face the shooters.
Pete did not record the pistol's serial number on the sales slip.