I took a shot on my first buck today from about 20' up in my climber. It was about a 20 yard shot broadside. I believe I hit the shoulder instead of right behind it because as it ran away my arrow was still stuck in it. My first deer I took was a pass through from about the same distance with a slower shooting bow. The buck ran off. No blood trail. I saw the arrow in it and heard the impact so I know there was definite contact. I'm shooting a 2013 bear legion 29.5" draw at 72lbs. I'm using decent arrows and switch blade mechanical broad heads. I called a buddy to help me out but by time I waited and got out of my stand it was dark. We searched for about an hour. No blood. What to do now? Just search the woods in the direction I saw him run and hope I find him? I feel really bad that my shot placement was possibly off a bit and he didn't expire quickly. Any advice will help, I know i screwed up so telling me that won't help