[Hill:] Our national lead, an urgent manhunt underway right now across California for a sniper who shot a sheriff's deputy walking to his car outside his station yesterday. That shooting took place in Lancaster, about an hour north of Los Angeles. Let's get straight to CNN's Stephanie Elam who is there for us this afternoon. So, what more do we know about the targeting of this officer, Steph?
[Stephanie Elam, Cnn Correspondent:] Well, we don't know, Erica, that he was targeted. We don't even know why the shooting happened. There's so many questions here. But I want to show you exactly what is of concern to many of the people who work in this area. As you can see through this gate which is happening on cue right now, you case back there, that is an apartment complex, and below that, these are personal vehicles these deputies. This is where this one officer was walking yesterday, just about 3:00 in the afternoon, when shots rang out. He was able to call for backup. The bullet actually his bulletproof vest, ricocheted off and hit him in his right shoulder. He's expected to make a full recovery. It could have been so much worse. Obviously after that, the deputies locking down the building. They went through the building, making sure that there was nothing they can find in there, they didn't. There was also a nearby school that they locked down. But, still, with all of this information, all of that locking down, they still have not been able to identify who the shooter was and why they did it. At this point, there's nobody in custody, Erica.
[Hill:] That is chilling. All right. Stephanie, thank you for that. Meantime, authorities in California also revealing chilling new details about a plan to carry out a mass shooting at a Marriott Hotel. That shooting to be carried out by one of the employees. As CNN's Nick Watt reports, it is just one of a series of plots thwarted by law enforcement since the massacres in El Paso and Dayton.