Knowing full-well that lions are an endangered species, why would you go and kill one? What egotistical purpose does that serve? The fact that he did this knowing full well this species is being threatened is the most despicable aspect of this story for me.
Perhaps this guy would like it if someone lured him out to his backyard, shot him with an arrow, let him suffer in pain until the next day, then when he's fully dead, behead and skin him and take photos? I guess animals don't have feelings though, so it's okay.