(CBS/AP) The cruise ship captain under fire for abandoning his vessel while thousands of passengers scrambled for rescue has reportedly come up with an explanation for his flight - he accidentally tripped and fell into a lifeboat: Capt. Francesco Schettino stated: "I didn't even have a life jacket because I had given it to one of the passengers. I was trying to get people to get into the boats in an orderly fashion. Suddenly, since the ship was at a 60 to 70 degree angle, I tripped and I ended up in one of the boats. That's how I found...