The place where crashed into the Pole (between Mass and Hancock), there is a beige abandoned building. Somebody at the building saw the bag and put it in the building to safeguard it from thieves, hoping that I get it. Thankfully, I met one of the people in the building at 922 Mass Ave and they gave me the backpack which includes the MacBook pro which is still in impeccable shape and without anybody resetting the software. It still has all my data in it