SCIUTTO: This morning, we are learning more about the gunman who killed 12 people at the Borderline Bar and Grill in Thousand Oaks, California, including a very troubling Facebook posts that he and David Long(ph) made just around the time of the rampage.</s>HARLOW: A new horrifying video from inside of the bar as this tragedy was unfolding. Before we play this, we want to warn you it is very disturbing.</s>HARLOW: Many of the patrons in that bar waited for pauses in the gunfire to try to escape. Let's go to our Nick Watt who joins us again this morning from Thousand Oaks, California. Look, we're seeing the images from the inside, we're learning more about the shooter. What can you tell us?</s>NICK WATT, CNN CORRESPONDENT: Well, Poppy, of course, we know he's a 28-year-old former Marine and as Jim mentioned, we believe that he posted this rather chilling, very chilling message on Facebook not long before he went on his deadly rampage. I'm going to read it to you now. He wrote, "I hope people call me and say, wouldn't that just be a big bowl of irony. Yes, I'm insane, but the only thing you people do after these shootings is hopes and prayers or keep you in my thoughts every time. And you wonder why these keep happening." Now, we know that he was armed with a glock, 45 caliber handgun that was purchased legally, but it had an illegal extended magazine in there.
Investigators Search for Motive in Thousand Oaks Bar Shooting