I didn't notice in this thread that anyone was assuming he was a local.
Some, including yours truly

, asked
if she was with a local, or another tourist/fellow student.
24 years old is a bit older for college age but possibly he's not an undergrad student, but rather, a graduate student ?
Or he's just a man on a vacay.
Locals or nationals
are going to be like people anywhere -- good, bad, or indifferent, or just there at the resort working as employees.
I've had the opportunity to do some traveling and have met many amazing lovely people.
Only my opinion: Local or not, it doesn't throw any shade at anyone, to ask -- however, if it helps to find out what happened to Sudiksha, it's legit to inquire
whom she was with and who saw her last.
Anything that will help find Sudiksha or what has happened to her.
At this time, I will assume Iowa mans' varying stories are due to him possibly imbibing too much.
If, as was posted upthread, there are armed guards at the beach entrances --not to mention cameras, it's doubtful she was harmed on the beach.
And it sounds like she never left of her own volition.
Am also starting to think this was nothing more than a drowning and she may have been carried by a riptide out to sea.
Hoping her family gets answers, I cannot begin to imagine what they are going through --ghastly.
I can imagine in their worry and grief, they may fear someone harmed her, and this is understandable.
Imo.