info from Back In The Day:He (Pac), Ms Shakur and Setchua had left Baltimore in a hurry, while the book's author was in New York. He don't know for sure why they done that. He'd heard about them moving to California, to Tupac's auntie house - that's the story
info from King of Stage - XXl article: during his junior year in Baltimore School for the Arts, one day Tupac came to Mr Hicken's (school principal I think) office, and before he (Pac) could say something, he had started to cry. Then Tupac told him, that his mother decided to move on the West Coast
that's all I know about that time in his life