Hunter Green, the 21-year-old sophomore who died last week at Southern Methodist University, is the son of professional golfer Ken Green.

Ken Green posted on his blog Tuesday: "Well, today is another sad day. I'm sorry to say that my youngest son, Hunter, has passed. His journey in life has ended and I can't tell you how difficult understanding this is."

Joseph Hunter Green, who went by Hunter, was found dead Friday in his dorm room in the SMU House, formerly the Kappa Alpha fraternity house. SMU police say he died of "unexplained" causes and have not elaborated. The Dallas County Medical Examiner's Office is still investigating the death and said results won't be available for at least eight weeks.

Hunter grew up in Palm Beach County, Florida and had attended University of Central Florida.