Help Daisy Find David from NY.

Hello everyone,
I decided to join this forum in hopes of being able to find a Marine... I don't mean that in a "I'm trying to find a Marine companion/boyfriend/lover" type of way, but a literal "I'm trying to find a specific person/Marine" type of way. his name is David. He is Latino, from New York, is stationed(or training?) in Carolina( don't remember if it is N. or S.) and will be in Arizona in April.
one of his partners name is Sean(Sean if you're reading this, tell David) but I'm an idiot and didn't get either of their last names(I know!).

Trust me, I know this is a long shot but I figured I have nothing to lose.



anybody have any idea if there is anything(besides pray and hope for the best. ha) else I can do or anywhere I can go/search to find this person.?