a rare brain tumor received more than 150,000 letters and packages .
he received mail from around the world and got more mail in one day than the rest of the town combined .
last july , his birthday request for cards with his name on them went viral and he received more than 150,000 cards from around the world -lrb- above nickerson last summer with the mail he received -rrb- .
nickerson was first diagnosed with the dipg after he complained about having double vision .