Marites Buenafe, of Kentucky, was reported missing Tuesday, a day after her birthday, when she did not return to the cruise ship Norwegian Bliss, according to the Alaska State Troopers.

Dr. Neha Gupta, a pediatrician from Oklahoma, was arrested on Monday and faces a first-degree murder charge. She is accused of smothering her daughter, Aria Talathi, to death and attempting to cover ...