Update: I found out that BS couldnt have been babysitting his 1/2 brothers. Mel (XH 3BM) hasnt seen or had the boys in well over 1 month. And the house that he was at is not Mel mom OR grandma's house. So now I have to figure out who's house it is and who he was babysitting for.
And I need to make sure BS and BD do not go around BM3 (mel) b/c she is into drugs and hang with some really shady people.