Valid points!
I personally like to view things from different perspectives, so if it's just from the media, that leaves doubt in my mind, to make any conclusions. Speculation is all there really is, when you don't have all the facts.
If you believe that Robert Lowry is dead by suicide, because that is what is reported officially, then I understand your reasoning. For myself, I need more evidence. Not trying to be difficult here, just questioning the story.