Words out of my mouth. no, i have this brand new baby at home. i can t have cancer. reporter: chris is running to raise money for the dana farber cancer institute as a thank you to the team who saved his wife s life. helped us stay a family and we are forever grateful. reporter: tomorrow will mark the eighth time matt brown and lucas carr will run in the marathon s wheelchair division. the duo teaming up again to raise awareness for spinal cord injuries. matt was a high school hockey player when he was paralyzed in 2010. to be able to help individuals who have suffered an injury like this live a better and more fulfilling day with what we raise, that s everything. so meaningful. thanks so much for watching. see you on gma in the morning. david muir right back here tomorrow night. i m linsey davis in new york. have a great evening, and good night.