My heart aches for the Vice President and his family. This new loss is almost unimaginable. His compassion for those left behind is enormous. Like MrsTim85, I often viewed the video of him speaking to the Gold Star families. MrsTim85, thank you for posting the link.
This is another link to the Vice President's talk with the families that day. His remarks are uncut. He begins at 8:30 and runs to about 28:00. He speaks of his anger, triggers and guilt at finding someone else attractive.
http://www.c-span.org/video/?306246-1/survivors-fallen-military-members.