Now this is just my guess but the blood shed at the party is going to be Marge she is going to kill her self right in front of the guests, she said s to her parents in the (suicide) note that she was so sorry but she could not go on with out Joe and to tell her son she was also sorry! she is going to do it in front of everyone and blame Sami right before she does it! This is my guess of coarse, she is not even think of her son. wow!!