SPOILER- walter kills skyler
Walter has killed, I don't know 3 or 4 people. The first one was combo or whatever his name is and he eats his PB and J with the crust off. So after Walter kills him he eats his PB&J that way just watch the episodes again, and then with gale or what not, when he, or jesse killed him he started to eat that soup he made. He also, however I forgot ate the same thing Gustavo liked after he killed him.
I believe during the first episode of the 5th season