Zimmerman? Really? This guy may have been a racist loon but nothing in that article says anything about being involved in a murder/manslaughter/legitimate self defense, whatever you want to call it.
And Paula Deen is a public figure who was already famous, this dude is nameless non-entity that works for the DHS and runs a random hate-site on the internet. I'm sure I can find reports of white people getting fired when someone found out they posted on Stormfront or something, and no outrage over that. Because they're nameless non-entities as far as public image goes.
If there's a double-standard, you certainly haven't shown it with this example.