Can you die from colon cancer?!? ?

My neighbor says his back has been hurting for the past year or two. He's 66. He told me that he has colon cancer and they JUST found it, after going to the doctor a couple times a month. He showed me a picture. It's about the size of a quarter. I don't want him to go. He is such a nice man so caring . He Is always willing to help out! I feel so bad cause he's a good person!!!! Is he gonna die? He is generally really healthy ... Omg I dont want him to go he is my only normal neighbor, the rest are freaks.... Omg and his dog . Can you die from colon cancer? My high school gym teacher had it and he was fine after treatment . But is it too late???