Connect the dots. How the accusing girls are connected

Accusers A2, A3, A4 & A5 all went to Wasilla High School. A1, A6 went to Palmer High School. The brother of A1 dated A3. A2 & A3 were best friends. A2 was also best friends with A4 and even were room mates for a time. Although it seems they had a falling out and one filled some charges on the other.