Any way for a non-family member to know if someone did have a Will at the time they died?

A very close and trusted friend died recently. We had discussed Will's of one sort or another on many an occasion. He said many many times that he did. Along the way he started saying things like "that's our..." or " you get that when I'm gone."(I really don't care one little bit if he did or not) But within days his widow called and asked odd questions pertaining to a persons last wishes and when I asked when his will would be read, she said (emphatically) that he didn't have one.
Is there some way I can see if he did?
Not sure I will say/do anything if he did, just curious as to whether his wife is lying or not.