Original sentence: Back at the camp they are joined by her colleague Hector Cyr (Oliver Platt), a millionaire crocodile expert who believes the creature is a crocodile, who arrives by helicopter.They also meet Delores Bickerman (Betty White), one of few people living on the lake, who claims to have killed her husband
Edited sentence: Back at the camp they are joined by her colleague Hector Cyr (Oliver Platt), an eccentric millionaire crocodile expert, who arrrives dramatically in his helicopter, and who firmly believes the creature is a crocodile.She claims to have killed her husband.They also meet Delores Bickerman (Betty White), one of few people living on the lake