I’m pretty sure death threats are illegal. Zimmerman should sue.
Assuming justice prevails and he's acquitted, Zimmerman is going to need a football-team-sized legal team to handle all of the lawsuits he should file.
He's got MSNBC for the slanderous edits of his 911 call. He's got CNN for releasing his SSN among other personal details (this is a FEDERAL case). He's got potential lawsuits against companies like Illuminati and racebaiters like Sharpton and Jackson.
Zimmerman's should have a free-for-all in the court systems. If anything, this is likely to become a huge payday for him, because the evidence is not only out there, it's very damning.
Death threats are illegal. If a company working with the Tea Party had done this, the FBI would jump on it.
The FBI needs to put aside their bias and hatred for conservative Americans and check these threats out.