Not often I'd say, but my own son, with no prior problems, who's the same age as Mr. Breitbart collapsed unconscious with cardiac arrest at work last year just before his 42nd birthday. Thankfully and luckily, he was with two co-workers who had just been trained in CPR and had a defibrillator nearby. He "died" twice before paramedics got him to a nearby hospital and he ended up getting an ICD.
But I would not be surprised if leftist scum had something to do with Mr. Breitbart's demise. They are that evil.
Let me phrase it this way what's more likely if you are a 43 year old public enemy number one to the very brazen and on the march left who is in the midst of a communist take over of the only impediment that has ever stood in in the way of their world wide aims while at the same time you are claiming to have a damaging video tape of their leader---heart attack or something else?
Especially if your death could serve as a warning to others not to venture down the same path.
I guess we will never know. But, if any of our other icons meet their makers in the near future --we will have some idea. And, yes, I do think the are that brazen.