Why do you think? Do you think it is because he is an actor? Or that his kid wasn’t really killed?
Because we know who he is, and we know which kid was his, and we have pictures, and the kid was buried.
So, what point are you trying to make by putting “quotes” around the word “father”? What point are you making by referencing his demeanor?
What conclusion do you reach based on that? And how do you ignore the facts, and replace them with your opinion of human nature based on a video?
We aren’t going to be able to tell you why the father was smiling. Maybe he heard a good joke. Maybe he was momentarily distracted by a conversation, and was able to forget his grief. Maybe he is one of those unfeeling males who rarely shows negative emotions. The point is, we don’t KNOW why someone does what they do.
But that isn’t really the point. Those who bring it up — what is THEIR point? What is the conspiracy for which this is evidence?
If you don’t really think the guy is an actor (we know he isn’t), if you really admit that his daughter is dead (she is), then what possible difference can it make what his demeanor is now?
The father’s behavior is classic “inappropriate affect”, a clinical term that describes behavior of those diagnosed with narcissism as a personality disorder. It is a text book example. Nothing more.