MR LAX
It could be the third, it could also be someone else, we don't actually know what happened to that person, sorry.  What I'm trying to say in order to clarify this is it doesn't help to take it any further.  He doesn't know who this person is,  the applicant doesn't know this.  He assumed it might be that person that ran away, but it could just as easily have been anyone else hiking on the road.