The family of a Mississippi 18-year-old who was found dead after a July 4 boat trip with friends to an island off the Gulf Coast called for a deeper investigation and for greater transparency at a news conference Friday with the Rev. Al Sharpton and noted civil rights attorney Ben Crump

The family of an 18-year-old found dead after a July 4 boat trip off the Gulf Coast has hired civil rights attorney Ben Crump.

The body of 18-year-old Nolan Xavier Wells was found Monday off Horn Island, Mississippi. That's where he was last seen with friends Saturday. Crump says the family is seeking…