Other two witnesses - Michael's brother and sister-in-law or Michael's sister and brother-in law, can't remember which, but his relatives.
It was the first scenario.
More people with a possible 'vested' interest...
Scott (Michael's brother) and Joan (Michael and Terri's sister-in-law) each testified to separate conversations with Terri. Here is the summary of all of the trial court testimony on the statements made by Terri regarding her desire not to be maintained artificially:
"The court does find that Terri Schiavo did make statements which are creditable and reliable with regard to her intention given the situation at hand. ... Statements which Terri Schiavo made which do support the relief sought by her surrogate (Petitioner/Guardian) include statements to him prompted by her grandmother being in intensive care that if she was ever a burden she would not want to live like that. Additionally statements made to Michael Schiavo which were prompted by something on television regarding people on life support that she would not want to life (sic) like that also reflect her intention in this particular situation. Also the statements she made in the presence of Scott Schiavo at the funeral luncheon for his grandmother that "if I ever go like that just let me go. Don't leave me there. I don't want to be kept alive on a machine." and to Joan Schiavo following a television movie in which a man following an accident was in a coma to the effect that she wanted it stated in her will that she would want the tubes and everything taken out if that ever happened to her are likewise reflective of this intent. The court specifically finds that these statements are Terri Schiavo's oral declarations concerning her intention as to what she would want done under the present circumstances and the testimony regarding such oral declarations is reliable, is creditable and rises to the level of clear and convincing evidence to this court. (slip op. at 9)