The earliest reports detailing the tragic theater shooting in Aurora, Colo., were posted on social media sites, namely Twitter and YouTube. Chris Rapoza whose back was grazed by a bullet shared a photo his pierced shirt online. Mekahlo Medina reports for the NBC4 News at 5 p.m. on July 20, 2012.
Using Storify -- an online tool to compile updates, photos and videos from various social media sites -- we've put together a look at the mass shooting in Colorado.