By Bonnie Stiernberg A little over a month after Bob Saget tragically passed away at the age of 65 in a Florida hotel room, we finally have a clearer picture as to how exactly he died — and the answer is a harrowing reminder of just how serious head injuries can be. Saget’s death was ruled an accident resulting from blunt force head trauma. Investigators believe he likely experienced an “unwitnessed fall backwards” in his hotel room and then, perhaps confused due to the blow to the head or simply unaware of how severely he had injured himself, he went to bed and died in his sleep. However, the…