<human>: On sat.august 31 we made a party for one of my friends..a fight broke out..kicked everyone out but in the end my book bag came up missing (it was in the back room where we set up my turntables n stuff)...in it, it had a social(was filing some paper work for a job), upass, school id, debit card, car keys, and macbook pro..the model before the whole Icloud thing to track it..
I filed a police report with the school..they are still part of the Chicago Police Department...the girl that we threw the birthday for just told me that her friend told her "low key.i came up on a book bag with a laptop"..this person also had been known to steal and have a bad reputation..she wants to help in any way she can but is afraid of getting chased after..and when I showed her a picture of how my book bag looks.she said it was the one she saw..i have the persons face book but don't know how to go about it..since I lost the case number, and when I called in to give my serial  and leads to the police, they haven't been much help over the past few days.nor called back..

Give me the gist of the text in a nutshell
<bot>: found the scum bag that stole my shit...not getting much help on the law side..how do I go about this.