Grandfather of 1-year-old who fatally fell from Royal Caribbean cruise ship to plead guilty

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3. The grandfather leaned OUT of the window before holding the child out the window

Surveillance video, the cruise line said, shows Anello leaning out of the open window for about eight seconds just moments before he lifted the little girl.

"This is a case about an adult man," Royal Caribbean said in its motion, "who, as surveillance footage unquestionably confirms: (1) walked up to a window he was aware was open; (2) leaned his upper body out the window for several seconds; (3) reached down and picked up Chloe; and (4) then held her by and out of the open window for thirty four seconds before he lost his grip and dropped Chloe out of the window."
https://www.usatoday.com/story/travel/cruises/2020/01/17/royal-caribbean-blames-reckless-grandfather-dropped-chloe-wiegand/4499586002/

It's not as if he had no way to know the window was open and let the kid run up to it before she fell out. He leaned out himself, then held the child up and out the window before she dropped.

How can the cruise line be held responsible for those actions?