Never let anyone tell you they don't want to take your guns.
But ok, for a moment, I'll play along. You can confiscate all individual firearms used to kill or injure someone. All of mine will be safe, and if I have to shoot someone in defense of my life, the police are likely to seize it for evidence and I'll have to buy a new one (or choose a new one from the safe) anyway.
I imagine this article in the Houston Chronicle isn't going over well in Texas.