Just my $0.02
"I thought the hunt was legal and all the permits had been obtained" does NOT make it better. I seriously doubt the lion gave a shit whether or not you thought it was a legal hunt. I don't think the legitimacy of the permits was even on its mind for the 40 hours it spent with a crossbow bolt sticking out of it while you tracked it down to finish the kill.
I also don't think it lessens my disgust at seeing you sitting next to the animal (or any of the others you killed and posed with) with the big stupid grin on your face like you've accomplished something heroic.
In fact, you weren't hunting for food and you didn't kill the animal to save your life in the face of an attack.
You were only interested in killing something. That's it. You wanted to kill another living thing just because you could and you were willing to spends tens of thousands of dollars to do it.
You know what that makes you? Psychopathic. Mentally deranged. Dangerous to society. You wanted to kill a living thing just for the fun of it. Once you had done so, you beheaded it and skinned it so you could remember doing it more vividly.
You're a sick fuck. You don't deserve to have a weapon. You don't deserve to be a member of society. You need serious, immediate mental help.