*laughs* Deduction is the word of the day boys and girls!!!
I do have a question for you. If you are not their REAL child, not even allowed to call him dad (I'm sorry, you must have felt so rejected by that) how come their REAL children are not taking care of their mother? I mean at least the bum son or pathetic daughter with the abusive boyfriend could come and take care of their mother since he did leave a good bit of money eh? How come their REAL son didn't ask his REAL brother to come take care of their FRAIL yet strong mother.
Oh...I'm sure you will say, I don't know what his thinking was..blah blah blah.
At least you lie in detail...but sad to say, you're in denial kiddo =)