I shot and killed a buck this past weekend. Here is the kicker, no vitals were hit. I will try my best to describe the wound as my father skinned/gutted the deer before I got home to really investigate the hit or take pictures. The deer was relatively broadside maybe just a touch quartered towards. I shot at 40 yards and watched everything unfold. The deer took a step at the shot...the leg facing me was back right where I was aiming at the deer's bottom third near his heart. the deer ran 40 yards crashed literally next to my stand and died. I got out of my stand and followed the blood trail and there was good blood. Get to the deer and see my arrow sticking out (No pass through). Upon inspection the arrow hit the shoulder joint, deflected into the chest just behind the brisket and went in about 5 inches. I figured what happened was the arrow must have caught his heart (it was nowhere near the lungs). Anyways, my father came in with the quad and picked the deer up and said he would start skinning it out at home. I walked out after I got my wife. By the time we got home it was about 45 minutes later. Father already had the deer completely gutted/skinned and was in the process of quartering it. I checked every single part of the heart, lungs, arteries that I could and there was no sign of trauma. I looked inside the chest and it looked like the arrow went in right at the brisket part of the chest and then upwards and nicked one of the vertebrae. Only thing I can think of is since there was so much blood coming out of the deer's mouth on the blood, I must have severed his esophagus and a artery? I am really baffled by this and wish I could have investigated more before my father cut the deer up. I am glad I did not wound the deer. Just crazy and thought id share.