Holy histrionics, Batman!The bottom line is this. George Zimmerman was found not guilty by a court of law. Unless there was jury tampering it is unconstitutional to try him again. Civil suites can be filed but it is an abomination that Holder thinks he can change the constitution and retry Zimmerman.
They should have charged him with manslaughter, but they went for second degree murder which they should have known unless the jury was affected by politics they would not get a conviction. They bet wrong.
I realize Holder ain't the most popular guy, but there is nothing unconstitutional (a word that is rapidly becoming meaningless due to seemingly never ending misuse) about a DOJ review of the events in question.
As much will come of the DOJ review of the facts in the Zimmerman case as came of Rush Limbaugh's threat to sue the NFL.
As to a civil suit ... I'm sure the families of Nicole Brown and Ronald Goldman would disagree with your characterization of their actions as an abomination. I'm not comparing the two cases, mind you, but under the law - the same system of laws that allows Zimmerman to walk free - it is as much the right of Trayvon's parents as it was of the Browns and the Goldmans.