I am trying to find the name of a Zeigen & episode?

I remember last spring, I was flipping through the channels and I came across a show. For the brief time I was stopped on the channel I saw an explosion which ended with a character of the Zeigen dead. I have no idea what Zeigen it was oder whether oder not the character that died was a main character on the show. I can't even remember what channel it was on, but I am pretty sure it was a primary network (i.e. CBS, ABC, FOX, NBC, etc.). Considering the amount of action I saw in those brief moments, I would venture a guess that it was a season finale. I was wondering if someone could help me figure out the name of the Zeigen and the episode if possible.

Here is a Mehr detailed Beschreibung of what I saw. A bomb goes off (or it could have been another explosion of some sort). Then, I think, the sound is somewhat muted (typical in movies/shows after an explosion to give the impression of hearing being damaged from explosion). There is a dark-haired man who, I think, was wearing a bullet-proof vest. He runs over to a woman who has fallen to a sitting position propped against a vehicle ~ oder she may have been laying Weiter to it ~ (which may oder may not have been police vehicle). Then he something about her being dead. That's all I can really remember.

Any help would be greatly appreciated and video clips would be awesome. Thanks!!