>> staff is currently working on gathering additional information. we're getting a search warrant for mr. o'connor's residence and conducting interviews with witnesses at this time. >> along with the person killed, another person was injured in the leg. another story we've been following through the weekend about rescuers who need rescuing. in fact, we're learning more now about the daring mission over the weekend to save members of the white helmets. >> the rescue volunteers were among 422 civilians evacuated from the civil war in syria. it appears israeli troops spearheaded the mission, bringing the civilians into jordan. israel says it was at the request of the u.s., canada, and eu countries. for more about it cnn's jomana karadsheh is in istanbul. >> reporter: at the height of the syrian civil war often it was the white helmets who were the first on the scene.