Could anyone help me recall a short story I read some years ago?

File: 1474155151716.jpg (116KB, 500x500px) Image search: [Google]

116KB, 500x500px

Could anyone help me recall a short story I read some years ago? From what I remember its fairly well known. I'll try to recount the generality of the plot
>Open with scene of family in kitchen, discussing their upcoming picnic.
>Father is reading a newspaper and talking about how awful the world is, son and daughter are eating breakfast, mother is in the kitchen, grandma is just kind of there.
>Next they're driving. They eventually break down or are stopped by some men
>The men hold everyone hostage at gunpoint. This is where the bulk of the story is
>The men are gangsters or something. There's conversation between them and the family. The family is trying to bargain for their lives
>The leader of the men kills off the family members one by one
>The story ends.
I recall there being some mention of Florida and oranges quite often, maybe something to do with somewhere the grandmother went when she was younger? But that's all I've got.
Thanks in advance.