After you shoot someone your #1 enemy is a gung ho liberal prosecutor looking to make headlines by crucifying a gun owner, especially if they are White, doubly so if the perp who got shot was Black. Prosecutors are all too often skilled, polished liars where the truth is simply clay to be molded. The average number of rounds fired in self defense is two (2) and the average amount of money spend defending that shooting is about $45,000.
Cops don't solve every killing. In fact, in the Phoenix area approximately 75% of the killings go unsolved.
If they somehow find your DNA in a publicly accessible area (along with possibly a number of other people) where a killing took place, they still have to prove you were there during the shooting. However, if they can connect you to spent cases found at the scene, you have a serious problem.
In a nutshell, they can now collect DNA off of 2 out of every 3 fired cartridge cases left at the scene. Loading a handgun with gloves to try and prevent fingerprints isn't enough anymore. Did you even breathe on the ammo? Sneeze near it? Did anyone in your household or who knows you do so? Did your ammo collect any DNA while in the magazine or while in the weapon?
https://www.in-the-loop.net.au/an-impro ... dge-cases/The researchers then tested this new method on real case work applications by testing over 100 cartridge cases collected from crime scenes. Approximately 67% of the time (8 of 12), at least one DNA profile suitable for comparison was obtained from fired cartridge cases assumed to be associated with a single firearm using the collection device and the rinse-and-swab method when the fired cartridge cases were collected within 24 hours.