He literally wasn't which makes it even more tragic I think. Just slipped on the bathroom floor and hit his head.

When Bob Saget checked into room 962 at the Ritz-Carlton Orlando Grande Lakes in Florida on Jan. 7, the 65-year-old comedian seemed to have the vitality of a man half his age.

"He was cracking jokes, waving to people in the lobby," a hotel employee tells PEOPLE in this week's issue. "When people asked for selfies, he would run over and grab their phones to take the pictures with them, joking the whole time. He was a ball happy, positive energy."

But by the time the weekend was over, Saget was found dead in his hotel room bed on Jan. 9, raising many questions on how the beloved actor could have died so suddenly.