Where would I start?

Hi...My brother moved to Cancun about 18 months ago to live and work. He would call on a regular basis but we never had a phone number or address for him. We have not heard from him now in over 6 months and we are very concerned. Does anyone have any idea how I would start looking for him? All I know is that he had/has a job selling condos/timeshare in Cancun/Mayan Riviera. His name is Michael McNally and he's 48 yrs old. Does it make sense to come down there or would that be a futile search? Are there private investigation services in Cancun? Any help would be greatly appreciated....thanks...

[RVGRINGO]

Your brother may have been displaced by the storm damage in Cancun which probably put a damper on some commercial activity. Did he ever mention to you that he went through the process of getting an FM3 Visa and working permission for his job; a legal necessity in Mexico? If so, perhaps Immigration would have a record of his current address which must be maintained current with them for the visa to remain valid. Otherwise, he is 'outside the law'. However, I don't know that Immigration would give out that information. Of course, you could go to Cancun and stroll around with a camera around your neck; any good time-share or condo salesman will spot you in a minute and it might be your brother, or someone who knows him. An obvious question comes to mind; do you think he really wants to be found? What mailing address does he use for US taxes, insurance, etc.? Does he have a car registered in the US?
Good luck.