I agree. Too many people are too quick to jump on the husband because "he didn't act right".
People who haven't been in a situation like that have no idea what it's like. He probably didn't know how to act. The woman you are about to marry is gone which is about as emotional a situation as you can get AND you are suspect #1 even though you know you had nothing to do with it.
But all I can clearly remember is that I was simply "out of it", it was almost like an out of body experience. My wife is not only my wife but my best friend as well and the worry of losing both fritzed me out more than anything I've experienced (and I've been in other hairy situations that didn't).