NCIS Mother's Day Episode

I am truly looking forward to this episode(not that I'm not always looking forward to NCIS)but this one -looks truly insightful to Gibbs past. It looks like we get to see when he married Shannon, perhaps Kelly's birth,etc. It also looks to me it will show why he carries so much guilt with him threw these years. It utterly depressed me to see Gibbs(in the preview) in tears. Want to know more about the episode check it out here including photos http://www.tvfanatic.com/2010/02/ncis-episode-stills-mothers-day/