HELP... Please, I need an answer........

My brother wrote out his will in 2005. In 2007 he had his name legally changed with the court.
The court paper reads; "The Court, after hearing the testimony of the petitioner, was of the opinion that the name change was well taken; that his name was being changed because of stolen identity problems; that for business and personal reasons, he desires that his name be changed to --------------; and that no creditors or other persons will be affected by said name change. IT IS, THEREFORE, ORDERED:
1. That the name of the petitioner, ----------, born ----------, is hereby changed to -------------, and that he be known and designated by said legal name."
My question is, the will he made out in 2005 had his old name and signature on it. No alterations were made to it. He passed away in 2007, after his name was legally changed. Does the will with his old name still stand or is it no longer valid?