Pretty scary. I was flipping back and forth between the Cubs and Bears today and just happened to be watching when it happened. A little lower he gets it in the heart, a little higher in the neck. Sounds like he is going to be ok but staying in the hospital for a day or two. If you notice he was watching the ball in left field and never saw the bat coming. Surprised it doesn't happen more often considering how many bats shatter like that.
YouTube - Tyler Colvin impaled by broken bat