Tywin Lannister's Comeuppance in the Final Episode of Season 4 Game of Thrones

Enough is Enough!!!! Might have been something that went through Tyrion's mind when he saw Shae sleeping on his father's bed. 

Here's a clip showing how Tywin Lannister finally gets his comeuppance....not from his enemies but from his long-suffering son, Tyrion. With Tywin's death, what will happen to House Lannister? Who would lead it? Looking forward to Season 5----