Ring of Honor wrestler B.J. Whitmer was taken to the hospital on a stretcher, after receiving a piledriver on the ring apron from Michael Bennett. According to several live reports, ROH officials immediately cut the match short, cameras stopped rolling and he was stretchered from the building.
This was most definitely not part of a storyline or an attempt to "work" the live crowd, as several ROH talents came down to the ring to help, and everyone looked genuinely concerned. Ring of Honor updated the situation moments ago, and it appears that initial reports are positive.