How about Scalia's death? Did you waste time on his?
Show me a list of "unusual", if not conveniently timed, deaths of all those whose pending testimony or what they knew threatened high-level Republicans, please. I'll wait.
Although the aftermath of Scalia's passing was a bit unusual, I believe Justice Scalia did die of natural causes as did Andrew Breitbart. Both had significant risk factors and health issues that would make a determination of death by natural causes very believable.
Like I said before -- if you or anyone else can provide me with hard evidence that these people did not die in the manner indicated, then ok, I'll believe it. Speculation by cranks like Alex Jones and guests on his webcast doesn't count.