This guy said he was a cousin out of state and to guess his name.

Called asking if we were the family (last name) And tried to make us Guess his name, But since we didnt answer he Hung up

Person calls speaking in Spanish and stated that he was related to us.  He's stated that I he was my nephew.  I put my son on the phone and he hung up.

a guy called my mom saying that he was her nephew flying from Juarez Mexico
and that needed some help (Money?),he is suppost to call her back 2/8 or 2/9,
this time I'll be around...

This is a type of "grandparent scam" only insert the relative and conveniently there is a accident or other such incident requiring money. It is a scam..

See:
http://travel.state.gov/travel/cis_pa_tw/fina ... scams_5608.html

Report is to:
http://www.ic3.gov/default.aspx
http://www.fbi.gov/
http://www.nw3c.org/
and your local authorities.