I love to kill yearling does and i dont see a problem with it. Yet if these deer are button bucks and young bucks there is a problem. I strongly believe in QDM and harvesting young does. They are easier to drag out and there isnt anythingbetter thanyoung tasty backstraps. I try to thin my doe herd on my hunting grounds, it also makes room for bucks to move in and grow. The only problem i see with it is it is hard to believe he killed 5 yearling does. If he did he is a better hunter than me.